Linton: Medical-Surgical Nursing, 7th Edition Answer Keys: In-Text Review Questions—NCLEX Chapter 01: Aspects of Medical-Surgical Nursing 1. ANS: 2 The state board of nursing defines the scope of practice for nurses. 2. ANS: 1, 3, 4 Leadership does not require a specific degree in nursing or other field. Various leadership styles may be used depending on the situation. However, an autocratic approach is not always the most effective. 3. ANS: 1 Nonmaleficence means to do no harm. By confirming the right drug and patient identity, the nurse reduces the risk of harm posed by a drug error. 4. ANS: 4 A tort is a civil wrong against a person which can include an invasion of privacy. Posting the patient’s photo on social media violates the patient’s right to privacy in the health care setting. 5. ANS: 1, 2, 3, 5 Only option 4 is incorrect. The nurse is not required to directly supervise tasks assigned to others although he or she may observe at some point to confirm that the individual performs correctly. Chapter 02: Medical-Surgical Practice Settings 1. ANS: 1, 3, 4 Medicare reimburses nursing care in the home as long as the care given is skilled and of a type that only a nurse trained in that kind of care could be expected to do. Sterile technique to clean and dress a wound, performing a venipuncture, and teaching a client how to inject insulin are all skilled nursing care. Taking a frail couple for a walk for exercise and removing outdated food from a refrigerator and pantry are not considered skilled interventions. 2. ANS: 1, 3, 4, 5 Community health nursing focuses on improving the health status of communities or groups of people through public education, screening for early detection of disease, and providing services for people who need care outside the acute care setting. The activities include conducting health education in a senior citizen center, arranging blood pressure screening at a shopping center, seeing clients in a clinic to monitor chronic illness problems, and giving flu vaccines at a public location. Monitoring the recovery of a postoperative client at home is a role for the home health care nurse. 3. ANS: 1 Community-based nursing is based on the delivery of health care services that meet the needs of citizens at certain levels of wellness and illness based on specific community needs. Meeting with residents of low-income housing to identify their health needs is an example of community-based nursing. Phoning a client at home after discharge form the hospital is an example of hospital-based nursing. Asking nurses to identify health services lacking in their communities is not client but nursing directed. Developing a hospital-based home health service is an example of community health nursing. 4. ANS: 2 Handicapped individuals are those who are not able to perform one or more activities of daily living (ADL). Impaired individuals have a disturbance in functioning that could be either physiologic or psychologic. Disabled individuals have a measurable loss of function and generally a diminished capacity to work. Disadvantaged individuals are people who lack certain opportunities and services such as those of the general population. 5. ANS: 2 The Americans with Disabilities Act prohibits private employers with 15 or more employees, state and local governments, employment agencies, and labor unions from discriminating against qualified individuals with disabilities. The Social Security Act gives additional aid to states for both direct relief and vocational rehabilitation. The Rehabilitation Act and the Vocational Act gave a comprehensive approach to problems experienced by the disabled, expanded available resources for vocational training, and defined services to be included in rehabilitation programs. 6. ANS: 2, 3, 4, 5 Medicare reimbursement for home health nursing care must be necessary, skilled, reasonable, and intermittent. Short-term care is not one of the reimbursement criteria for Medicare. 7. ANS: 4 To care for a head injury client who is having difficulty feeding herself, the best response is to be sure that her food is accessible and give her praise for her efforts at self-feeding. Offering to feed her and ordering a liquid diet so she does not have to use utensils does not help the client to rehabilitate herself. Telling the client that the sooner she feeds herself, the sooner she can go home is putting extra stress on the client and is not a therapeutic comment. 8. ANS: 2 A client who is only able to perform 25% of his usual job activities is considered disabled. A handicapped client is one who is not able to perform one or more activities of daily living (ADL). An incapacitated client is someone who is unable to work, move, or function in the usual way. An impaired client has a disturbance in functioning that could be either physiologic or psychologic. 9. ANS: 1 These efforts are a way to prevent the client from feeling depersonalized. Maintaining the resident’s dignity is to professionally treat the resident as a person with thoughts and feelings. This effort is not focused on preventing regression or social withdrawal. 10. ANS: 3 Dependence on activities of daily living (ADLs) is the primary reason why clients need nursing home placement. The care delivered there is based upon promotion of independence, maintenance of function, and maintenance of autonomy. It could be a short stay after a surgical procedure or a temporary admission because of an illness of the family caregiver. It is not based on one’s medical diagnosis, and the availability of family caregivers would not necessarily eliminate a client receiving home health nursing services. Nursing home care is not independently based upon financial resources. Chapter 03: Medical-Surgical Patients: Individuals, Families, and Communities 1. ANS: 1 Upon an analysis of interactions, often it is discovered that a family member described as a scapegoat or a problem member tends to divert attention from family problems. There is no specific name for an individual who brings attention to a family member who contributes the least, but a blocker is a family member who opposes and rejects all ideas and so probably does the least for the family. There is no specific name for someone who tests the bonds of loyalty within the family. A go-between may also be involved with motivating children to compete with siblings, but this type of interaction is often considered dysfunctional because it interferes with direct communication among family members. 2. ANS: 4 A statement made by survivors of a life-threatening crisis that “we lost everything but each other and this has taught us what is really important in life” is an example of attaching meaning to the experience. It is not an example of dealing directly with the cause of the problem or of providing comfort to each other. This serious statement does not deny the severe gravity of the situation. 3. ANS: 3 External coping strategies involve the use of social support systems to solve problems. Ministers and church members visiting and praying with the family of a critically ill client is an example of an external family coping strategy. Internal coping requires positive family communication patterns. Social support interventions are not examples of internal family coping strategies or related to anticipatory grieving. It is not an example of unrealistic thinking but a rational activity. 4. ANS: 2, 3, 5 Developmental tasks for the traditional two-parent family in later life include maintaining a satisfying living arrangement, adjusting to a reduced income, and maintaining intergenerational ties. Communicating openly between parents and children is a developmental task needed for families with adolescents. Reorganization of the family into a continuing unit is the launching children and moving on stage, when mature young people are released into lives of their own. 5. ANS: 2 Emotional family roles include leader, nurturer, and protector. Performance-oriented roles include breadwinner, homemaker, handyman or handywoman, or gardener. Developmental family roles include predictable stages of growth and development. Maternal role often refers to the promotion and maintenance of optimal family health to ensure cycles of optimal childbearing and child rearing. 6. ANS: 1, 2, 3, 5 All options except 4 have been found to be typical among Euro-Americans. The emphasis on individuality overrides the value of harmony. 7. ANS: 1 Primary prevention focuses on health maintenance, i.e., the prevention of disease or injury. 8. ANS: 4 According to Erikson, older people examine their life. If the review results in a feeling of accomplishment and fulfillment, the person achieves ego integrity. Older persons who are regretful and bitter about their life accomplishments experience feelings of despair. Chapter 04: Health, Illness, Stress, and Coping 1. ANS: 2 The affective dimension involves an individual’s ability to experience and express feelings and emotions. The cognitive dimension involves an individual’s ability to formulate thoughts, process information, and solve problems. The behavioral dimension reflects a person’s individuality and involves integration of the physical, cognitive, and affective dimensions. The social dimension involves an individual’s skills in living as a member of a family and community. All together, these dimensions form a complete or total person. 2. ANS: 1, 4 Options 1 and 4 are correct. Moderate intensity exercise for 150 minutes per week is recommended. Adults need 7 and 9 hours of sleep each night. Older adults should sleep 7 and 8 hours nightly. Women should limit alcohol intake to one drink daily whereas men should have no more than 2 drinks daily. 3. ANS: 1, 2, 3, 4 A person’s level of health is directly related to the ability to adjust or adapt to a variety of internal and external stressors. A stressor can be positive or negative and necessitates an adaptive response on the part of the individual. Stressors can originate in any or all of the dimensions of the self. Perceptions of stress and coping mechanisms are highly individualized. Without effective coping strategies, individuals can be caught in a vicious cycle of ineffective coping and increased stress that will stop only at the point of total exhaustion and may result in death. 4. ANS: 4 The words fear and anxiety often are used interchangeably. Anxiety is evoked by a nonspecific threat rather than a specific threat. The body’s physiologic reaction to fear is similar to its response to anxiety, although fear is generally more disabling than anxiety. Anxiety does not mean that the person has poor coping skills, nor does it interfere with effective problem solving. As people develop, they learn to cope with anxiety. Individuals continually regulate their behavior based on their level of perceived anxiety. 5. ANS: 4 Defense mechanisms are strategies used in an effort to reduce or diminish anxiety. Identification is a defense mechanism used to emulate admirable qualities in another to enhance one’s self-esteem. Denial is a defense mechanism that refuses to acknowledge a real situation. Repression is an unconscious defense mechanism where unacceptable ideas, impulses, and memories are kept out of consciousness. 6. ANS: 3 Identification is the emulation of admirable qualities in another to enhance one’s self-esteem. Regression is withdrawing to an earlier level of development to benefit from the associated comfort levels of the previous level, as when a child starts sucking her thumb when her new baby brother comes home from the hospital. Introjection is internalizing or taking on the values and beliefs of another person, as when a child takes on the values and beliefs of a parent. Projection is transferring unacceptable feelings or impulses to another, as when a partner who is jealous of her significant other accuses the partner of being jealous. 7. ANS: 1 Exacerbation is when symptoms of a chronic disease return. Full recovery is when the disease has been cured, and remission is when symptoms will soon reappear. End of life is when the terminal stage of the disease has begun. 8. ANS: 2 The problem that would be included in the first priority (physiologic) of Maslow’s basic human needs hierarchy is shortness of breath. This hierarchy involves five levels, and physiologic needs must be satisfied first before a person can progress to the next levels. Ability to breathe is a basic physiologic human need that is essential to sustain life. Low self-esteem is a problem related to one of the fourth priority (self-esteem and esteem of others) needs. Both unstable gait and impaired speech are examples of problems in the second priority (safety and security) needs related to the need for protection from harm. 9. ANS: 4 The most appropriate nursing intervention to help the client and his family cope with this stressful situation is to determine the client’s previously successful coping strategies. This assessment will give the nurse information about what interventions might be needed to help the client and his family deal with this new stressful situation. Dealing and coping with this new condition will require the client to make some decisions. The decision to use complementary and alternative therapies is the decision of the client and family. It is not up to the nurse to convey personal beliefs and discourage the client from using these therapies. Chapter 05: Immunity, Inflammation, and Infection 1. ANS: 3 Autoimmunity is a condition in which the body’s immune system attacks its own tissues. Immunodeficiency, also called immunocompromised or immunosuppressed, is when the body is unable to launch an adequate immune response and is at great risk for infection. Health care–associated infections (HAIs) that are acquired within a health care facility used to be called nosocomial infections. Now they are HAIs and can affect both the client and health care worker. Inflammation is a process that includes a series of cellular changes that signal the body’s response to injury or infection. 2. ANS: 1, 3, 5 The classic signs of local inflammation include heat, redness, and swelling at the site, and precede infection. Inflammation does not include drainage or fever, which are signs of infection and tissue injury. 3. ANS: 3 In the first stage of the inflammatory process, capillary permeability increases, allowing monocytes and neutrophils to move into the inflamed tissue. Bradykinin helps mediate blood vessel dilation and permeability. Cortisol is a hormone produced by the adrenal cortex that is an anti-inflammatory substance that helps to impede the inflammatory process and helps to counteract bronchoconstriction in antigen–antibody reactions. 4. ANS: 4 There are few antiviral drugs because replication of the virus occurs within the host cell, so killing the virus will harm the host cell. Viruses do not have more advanced ability to develop resistance to drugs. The profitable cost of antibacterial drugs has nothing to do with the number of viruses. Current antiretroviral drugs do not kill but help to suppress viral reproduction or growth. They do not cure the virus. 5. ANS: 1 Characteristics of the incubation period include the infected person being very contagious. Generally the client is asymptomatic and fever is not present. The recovery phase occurs after the infection phase. 6. ANS: 4 Health care–associated infections (HAIs) related to multidrug-resistant organisms (MDROs) include vancomycin-resistant Enterococcus (VRE). Gonorrhea is a sexually transmitted disease. Tuberculosis is an airborne infection. Hepatitis B, and not hepatitis A, is an HAI that can be transmitted by a needle puncture. Streptococcal pharyngitis is a contagious infection, spread through close contact with an infected individual. A definitive diagnosis is made based on the results of a throat culture, and antibiotics are given to both prevent complications and speed recovery. 7. ANS: 2, 4, 5 Measures that help to protect against the development of bacterial resistance include antimicrobial selection is based on results of culture and sensitivity tests, and antimicrobials are prescribed only for serious infections. Vaccinations are encouraged for infectious disease. To prevent recurrence of illness, antimicrobials should be continued until the entire course has been completed or the health care provider orders them to be discontinued. Overuse of broad-spectrum antimicrobials encourages the development of resistance, which eventually decreases their range of effectiveness. 8. ANS: 1 Soiled caregiver hands are the primary mode of transmission of health care–associated infections (HAIs). This includes hand washing with use of running water, use of an alcohol-based waterless antiseptic, or a surgical scrub when assisting with operative procedures. Direct contact between clients is not a great threat, but hand hygiene and use of antiseptic solution need to be encouraged with all clients. Visitors are encouraged to use antiseptics when entering and leaving a client’s room, and additional precautions are needed if clients are on Transmission-Based Precautions. Faulty sterilization procedures are not a viable threat to transmission of HAIs. 9. ANS: 2 Standard Precautions need to be used when caring for any client in any setting. Transmission-Based Precautions are used when caring for clients with open wounds, tuberculosis, hepatitis, and HIV infection, and also for clients who are highly susceptible to infection. 10. ANS: 2 High-efficiency particulate absorption (HEPA) filter respirators rather than surgical masks need to be used to protect the caregiver by filtering inspired air, and are used when caring for a client with tuberculosis and other airborne infections. They are not used to protect the client and are more expensive than surgical masks. 11. ANS: 3 The client’s ability to resist the measles virus is called active acquired immunity, which develops after direct contact with an antigen through illness or vaccination. Innate immunity is present in the body at birth and is not dependent on a specific immune response or previous contact with an infection. Nonspecific defense mechanisms or natural immunity includes physical and chemical barriers, phagocytosis, and the inflammatory process. Passive acquired immunity is temporary and what newborns receive from their mothers through the placenta or through ingestion of breast milk. 12. ANS: 4 Nursing care of the immunosuppressed client includes emphasizing the need for proper hand washing by clients, visitors, and staff. Rectal thermometers should be avoided because of the potential for damage to the rectal mucosa. Fresh produce may be eliminated from the diet if the client’s white blood count is too low. Flowers and plants do not increase oxygen in the room and are not allowed because they provide a reservoir for bacterial growth. Chapter 06: Fluid, Electrolyte, and Acid–Base Balance 1. ANS: interstitial Extracellular fluid is fluid outside the cell. These fluids are found in the blood vessels in the form of plasma or serum (called intravascular fluid) and in the fluid surrounding the cells (called interstitial fluid). 2. ANS: 1 Water makes up the largest portion of the body weight. Fat, bone, and muscle all contribute to body weight, but water makes up 50% to 60%. 3. ANS: 2 Osmosis is the movement of water across a membrane from a less concentrated solution to a more concentrated solution. Diffusion is the random movement of particles in all directions. Filtration is the transfer of water and solutes through a membrane from an area of high pressure to an area of low pressure. Active transport is the process by which carrier proteins transport substances from an area of lower concentration to an area of equal or greater concentration. 4. ANS: 4 Atrial natriuretic factor (ANF) is a hormone released in response to stretching of the atria by increased blood flow. ANF stimulates the kidneys to release sodium and water and causes decreased stimulus of renin and aldosterone, and vasodilation. The net effect is reduced blood volume and lower blood pressure. Antidiuretic hormone (ADH) replenishes fluid in the body. Renin is a hormone that is secreted when blood pressure falls. Decreased synthesis of renin and decreased release of aldosterone help lower blood pressure. 5. ANS: 2 Older people have limited reserves with which to maintain fluid balance when abnormal losses occur because many older adults have a reduced sense of thirst, resulting in lower total body water. Older adults therefore cannot maintain fluid and electrolyte balance as well as younger adults. Body water decreases, not increases, with age. The amount of intracellular fluid, not extracellular fluid, declines in older adults. 6. ANS: two (2) liters One (1) liter of fluid weighs two and two-tenths pounds (2.2 lbs). Therefore, 4.4 lbs must equal two (2) liters of fluid loss. 7. ANS: 3 Tenting is a term sometimes used to describe skin that does not flatten promptly after being gently pinched into a tent shape. This is an indicator of dehydration. This is not an appropriate test of skin turgor in older adults, because the skin of older adults generally has a slower return to normal. This measurement is not appropriate for recent weight loss, excessive sun exposure, or the need for increased diuretics. 8. ANS: 3 When assessing a potassium imbalance, either deficit or excess, monitoring the client’s heart rate and rhythm is most important. Both deficits and excesses can cause potentially fatal abnormal arrhythmias. Abnormal bowel sounds, reduced muscle strength, and abnormal reflexes may all present as signs and symptoms of potassium imbalance, but are not the most important nursing assessments to monitor. 9. ANS: 2, 3, 1 Normal acid–base balance is maintained by three primary, complex mechanisms: (1) buffers, (2) respiratory control of carbon dioxide, and (3) renal regulation of bicarbonate. 10. ANS: 4 Deep, rapid respirations, also called hyperventilation, function to blow off carbon dioxide and lower partial pressure of carbon dioxide (PaCO2) levels, which raises the acidity (pH) of the blood. Respiratory alkalosis eliminates excess carbon dioxide formed in the presence of acidosis. Raising the PaO2 does not reduce the pH of the blood. Metabolic acidosis also does not supply additional oxygen needed because of the increased metabolic rate. Chapter 07: The Patient with Cancer 1. ANS: 1 Benign and malignant tumors are alike because both press on normal tissue and compete with normal cells for nutrients. Benign tumors usually grow slowly, while malignant tumors typically grow rapidly but may grow slowly. Benign tumors may enlarge and expand but do not invade nearby tissues or disperse cells or colonize distant parts of the body like malignant tumors do. Benign tumor cells closely resemble those of the tissue of origin, whereas malignant tumor cells are not readily identifiable to the tissue of origin. 2. ANS: carcinogen A carcinogen is a chemical, viral, or radioactive substance that can cause cancer. 3. ANS: 1, 3, 4, 5 Dietary recommendations believed to reduce the risk of some cancers include limited alcohol consumption; high-fiber, low-fat and low-calorie diet; a variety of fruits and vegetables; and limited smoking and consumption of nitrate-preserved foods. Ingesting dairy products and red meat does not have an increased risk for cancer. 4. ANS: 3 Oncofetal antigens or tumor markers are substances found on fetal cells and the surface of cancer cells. Elevations of these antigens are associated with certain cancers. They are often used to monitor response to cancer treatments. Blood levels will continue to rise if the cancer is still growing despite chemotherapy. If the levels continue to rise with chemotherapy, it means that the chemotherapy is not effective. This antigen level does not have any relationship to an adverse response to chemotherapy, nor does it reflect a strengthening of the patient’s immune system. 5. ANS: 1, 4, 5 Safety precautions when caring for a patient with an internal radiation source include always wearing a gown when giving direct care to the patient, not allowing pregnant visitors or staff to enter the patient’s room, and keeping the patient in a private room. If the radiation source comes out of the patient’s body, then immediately notify the physician and the radiation safety personnel and do not touch it with bare hands. Forceps and a lead container are always kept in the patient’s room to retrieve and contain the source. When not providing direct care, the amount of radiation exposure is reduced by limiting the amount of time spent in the room and by working as far as possible from the radiation source and not at least 3 feet away. 6. ANS: 4 Radiation therapy adversely affects bone marrow, hair follicles, and the gastrointestinal tract because these tissues regenerate rapidly. These tissues do not have a special inadequate defense against harmful substances, and do not attract radioactive substances. Also, sensitivity of these tissues to the adverse effects of chemotherapy is not related to the circulation within these tissues. 7. ANS: 1, 3 Colony-stimulating factors (CSFs) are also called hematopoietic growth factors. Because antineoplastic drugs suppress the bone marrow, CSFs can be used to stimulate the bone marrow to produce platelets, red blood cells, and white blood cells in patients receiving chemotherapy. CSFs help to reduce the risk of infection by shortening the period of neutropenia, when white blood cells are low, and reducing the risk of anemia that is also associated with chemotherapy. CSFs do not have any effect upon the dose of chemotherapy given, nor do they reduce the need for bone marrow or stem cell transplantation. CSFs have no antiemetic properties to reduce nausea and vomiting associated with chemotherapy. 8. ANS: 3 Bone marrow suppression is the most dangerous side effect of antineoplastic drugs. Nausea and vomiting are likely to be the most distressing to patients because antineoplastic drugs simultaneously irritate the lining of the digestive tract and stimulate the vomiting center in the brain. Gastrointestinal bleeding is not a significant side effect of these drugs. Neurotoxic effects of these drugs are mostly associated with numbness and tingling of extremities, paralytic ileus, and loss of deep tendon reflexes but do not increase the patient’s intracranial pressure. 9. ANS: 2 Biologic response modifiers (BRMs) are used to promote and boost the body’s existing defenses against cancer cells. BRMs act directly on malignant cells or stimulate the immune system to act against them. They are most effective if the immune system is functioning adequately. A skin test can be performed to evaluate the immune response before therapy is started. Examples of BRMs are interferons and interleukins. Generalized side effects of BRMs include flu-like symptoms. BRMs have no actions that can help treat mental depression or immunize patients against certain types of cancer. BRMs also do not prevent any metastasis of cancer. 10. ANS: 4 All of these patients are experiencing normal reactions to grief. Normal reactions to grief include being sad or tearful, verbalization of feelings of loss, talking about the loss and looking at or touching the affected part, asking many questions, and planning a personal schedule around treatments. Some patients exhibit anger, and others are stunned and unable to accept any more information. Chapter 08: Pain 1. ANS: 1 According to McCaffrey, “Pain is whatever the person experiencing it says it is and exists whenever he says it does.” It is not defined by the nurse, the physician, or the physiologist. 2. ANS: 2 Nociceptors, or pain receptors, are stimulated and afferent pathways that send impulses to the spinal cord and then to the brain. Nociceptors are stimulated first and then afferent pathways are activated. Efferent (descending) pathways do not stimulate nociceptors but are nerves that carry messages away from the brain to the rest of the body via the spinal cord. The brain does not stimulate nociceptors. Nociceptors are part of the afferent pathways. 3. ANS: 3 Clients with a lower pain threshold experience pain more readily with fewer stimuli. With hospitalization or illness, complaints of anxiety, fatigue, or loss of sleep can lower the client’s pain threshold or lead to the client experiencing pain more easily. Labeling Mr. B. a complainer is not appropriate. Mr. B. has a lower pain tolerance and not a higher one. There is no indication that Mr. B. is more anxious. 4. ANS: 2, 4 Autonomic nervous system responses to pain include constipation and increased heart rate as well as increased blood pressure, perspiration, and pallor. Pain also causes increased and not decreased respiratory rate, dilated and not constricted pupils, and urinary retention and not urinary frequency. 5. ANS: 4 Complaints of increased pain when bending over is an example of an aggravating factor. Location involves specifically where the pain is located. Alleviating factors include what makes the pain lessen or go away. Quality describes what type of pain the client is experiencing, such as sharp, dull, cramping, or aching. 6. ANS: 1, 2 Safe and effective heat therapy includes using the heating pad intermittently rather than continuously and not applying heat to any area that lacks normal sensation or circulation. The heating pad should never be set at the highest temperature the client can tolerate. Limit the application time to 30 minutes and not 15 minutes. Also, heat therapy, if performed appropriately, is a safe and effective strategy for pain management. 7. ANS: 1 Imagery is a nonpharmacologic approach to pain control. Distraction is most helpful during brief periods of pain and not chronic pain. Relaxation is a self-hypnotic technique to reduce pain and does not require the nurse to hypnotize the client. Client education may help to lessen anxiety but is not all that is needed to reduce anxiety. In fact, depending upon the person, some clients do not want to know information about the pain experience. 8. ANS: 4 Nonopioid analgesics are used cautiously in clients with hypertension because these drugs can cause fluid retention. Other side effects include stomach irritation and increased bleeding time. They do not cause peripheral vasoconstriction, potassium loss, or sleep disturbances. 9. ANS: 3 Nonsteroidal anti-inflammatory drugs (NSAIDs) can affect platelet activity and bleeding time, so clients need to be asked if they are taking any anticoagulants. NSAIDs do not have any side effects related to also taking antibiotics, decongestants, or hormone replacements. 10. ANS: 3 The nurse’s first priority when a client is taking opioids is to assess the client’s respiratory system. Unwanted side effects of opioids include decreased respiration, drowsiness, constipation, urinary retention, and nausea. Hydration status may be affected if the patient experiences nausea and vomiting. Chapter 09: Shock 1. ANS: 4 A patient with peritonitis after a traumatic abdominal injury is at risk for hypovolemic shock. It is the most common type of shock and most often occurs as a result of rapid blood loss. Cardiogenic shock occurs when the heart fails as a pump. Other conditions that lead to ineffective myocardial cell function include dysrhythmias, cardiomyopathy, myocarditis, valvular disease, and structural disorders. Anaphylactic shock occurs as a result of a severe allergic reaction leading to the release of chemicals that dilate blood vessels and increase capillary permeability. Neurogenic shock occurs when a nervous system disruption affects the vasomotor center in the medulla. 2. ANS: 1, 3, 4 Distributive shock refers to widespread vasodilation. This type of shock causes the blood to be improperly distributed. Distributive shock is not related to blood or fluid loss. Antigen–antibody reaction is related to anaphylactic shock, which is a type of distributive shock. Cardiogenic shock is when the heart fails as a pump. 3. ANS: 1 Massive edema with anaphylactic shock is related to increased capillary permeability resulting from the release of chemicals that dilate vessels in response to a severe allergic reaction. Pooling of blood occurs in all peripheral tissues and not just in dependent parts of the body, leading to decreased venous return and a decrease in cardiac output. The kidneys do not retain excess water, but kidney output is decreased due to the decrease in cardiac output. There is not overproduction of antidiuretic hormone. 4. ANS: 3 Anaphylactic, septic, and neurogenic shocks are all types of distributive shock and all are related to vasodilation. Infection is related to septic shock but not to anaphylactic or neurogenic shock. Allergic reactions are related to anaphylactic shock but not to neurogenic or septic shock. Heart failure is related to cardiogenic shock. 5. ANS: 3 As shock progresses, cells are deprived of oxygen and resort to anaerobic metabolism, with production of lactic acid resulting in metabolic acidosis. Metabolic alkalosis results from an increase in bicarbonate levels or a loss of hydrogen ions caused by prolonged nasogastric suctioning, excessive vomiting, diuretics, and electrolyte disturbances. Respiratory alkalosis is generally caused by hyperventilation and is marked by a low PaCO2 with a resultant rise in pH. Respiratory acidosis occurs when the respiratory system doesn’t eliminate enough carbon dioxide to keep the normal acid–base balance, leading to a buildup in carbonic acid and a decrease in pH. 6. ANS: 2 With shock, a decrease in cerebral perfusion leads to ischemia and a decrease in cerebral blood flow. Therefore, assessing the patient’s level of consciousness is the best, first action. Assessment of reflexes may be done after the level of consciousness is determined. The patient’s emotional state would be included in the level of consciousness assessment. Determining a patient’s mean arterial pressure is included in hemodynamic monitoring and is not as easy or adequate an assessment as determining a patient’s level of consciousness. 7. ANS: 4 Blood, crystalloids, and osmotic agents all serve to increase the blood volume. Increased pulse volume, increased blood pressure, and rales and crackles in the lungs in the shock patient suggest circulatory overload. With sepsis, blood pressure normally falls and heart rate increases. Changes in lung sounds occur with pneumonia, but the change in blood pressure (BP) is not expected; heart rate would probably be increased more than 80 bpm. MODS is characterized by tachycardia, and hypotension is more likely than normal to elevated BP. 8. ANS: 3 Acute myocardial infarction is the most common cause of cardiogenic shock due to the problem of cardiac pump failure occurring. Shock related to pancreatitis and gastrointestinal bleed is generally hypovolemic shock. Shock related to anaphylaxis, or anaphylactic shock, is a type of distributive shock. 9. ANS: 4 Signs of circulatory overload include full, bounding pulse; dilute urine; increased respiratory rate; abnormal lung sounds; dyspnea; and edema. Signs of sepsis leading to septic shock include documented or suspected infection; inadequate tissue perfusion related to metabolic acidosis; hypotension; acute encephalopathy; oliguria; or coagulation disorders. Signs of multiple organ failure occur when the tissues of major organs are not perfused and lactic acid builds up, leading to organ dysfunction such as systemic inflammatory response syndrome (SIRS) and multiple organ dysfunction syndrome (MODS). Pneumonia can lead to septic shock, hypotension unresponsive to fluid resuscitation, and signs of inadequate tissue perfusion with a decrease in lung sounds. 10. ANS: 1, 2, 4, 5 Interventions that reduce the risk of systemic inflammatory response syndrome (SIRS) and multiple organ dysfunction syndrome (MODS) in a patient with pancreatitis include maintaining strict asepsis with invasive procedures, providing frequent oral care with chlorhexidine gluconate, practicing scrupulous hand washing, and administering enteral feedings as ordered. The patient should be in a semi-Fowler or semirecumbent position and not a high Fowler position. This position helps to reduce the risk of ventilator-associated pneumonia. Chapter 10: The Older Adult Patient 1. ANS: 1 Older adults who have liked sexual activity during their lives are quite likely to retain that interest, although they may engage in sexual activity less often than younger people. Most older adults do not lack extended family and support networks and do have those resources. Only 5% to 7%, and not 50%, of people over 60 have dementia. Only 1% of the people between the ages of 65 and 74, 3% of people ages 75 to 84, and 11% of those over 85 years live in nursing homes. 2. ANS: 1, 4 Neurologic changes found in healthy older adults are related to a slowing of brain impulse conduction. Short-term memory is impaired, and this group is easily distracted from tasks. In the absence of disease, most older adults maintain normal intellectual capability, sound judgment, and creativity. 3. ANS: 3 This man’s normal activity state does not return because, with increasing age, the ability to maintain physiologic functions in the face of acute illness is reduced. In this case, the client’s acute illness has overwhelmed his already limited cardiac and renal function. Immune function is not severely impaired at age 90, nor is his condition related to not seeking treatment for the pneumonia soon enough. The reason this client has not improved is not because he wants to continue receiving the same attention he received when he was acutely ill. 4. ANS: 1, 2, 4, 5 Skin care instructions that should be included when teaching active older people are using sunscreen to reduce the risk of cancer, reporting any changes in existing skin lesions to a nurse or physician, using moisturizers and little soap to prevent dry skin, and being aware that any generalized itching could be a symptom of a serious illness. Hot baths, harsh soaps, and vigorous scrubbing contribute to dryness and do not remove dead skin. 5. ANS: kyphosis Kyphosis is a common condition with older adults. It is an increased curvature of the thoracic spine that can limit chest expansion. 6. ANS: 2 Presbycusis is related to hearing loss with old age and includes atrophic changes in the cochlea, auditory nerve, and auditory brainstem pathways. It also includes temporal lobe pain. It results in being less able than young people to hear high-pitched sounds and consonants, so a lower voice tone is generally heard better than a high-pitched voice. It is not related to vision or room lighting. Blood pressure is not affected with presbycusis, and body fluid precautions are not indicated. 7. ANS: 4 A statement that a person can’t run marathons anymore, but still enjoys a brisk walk, is an example of ego integrity. Ego integrity is present when an individual reviews his or her life and gains a feeling of accomplishment and fulfillment. Options 1 and 2 are examples of an older person being unable to cope effectively with loss, leading to an altered self-concept and loss of personal identity, fulfillment, and meaningfulness in life. Option 3 is an example of the continuity theory, wherein older people behave in later years much as they had throughout life. 8. ANS: 2, 3 Being able to perform instrumental activities of daily living (IADL) includes cooking and shopping. These activities are essential for a person to continue or to return to independent living. Bathing, eating, and elimination are examples of activities of daily living. 9. ANS: 1 Respiratory depression is an example of an adverse central nervous system effect of pain medication in an older, postoperative client. Drug therapy for anxiety, pain, or sleep can produce respiratory depression in the older adult client. Excessive drowsiness could also be an adverse effect in the older adult client, although difficulty sleeping and agitation are not. Vomiting and diarrhea are not adverse effects of pain medication in older adults. 10. ANS: 4 Aspirin could be related to the client’s bruising and oozing of blood after a cut, since it tends to enhance the effect of anticoagulants. A side effect of spironolactone is hyperkalemia, and hypotension can result after taking verapamil. Taking Maalox would not result in bleeding or bruising. Chapter 11: Falls 1. ANS: 1 Deep tissue damage or concussion occurs in approximately 5% of patients living in residential care facilities. Contusions, cuts, or lacerations occur in 25% to 30% of all reported falls of patients living in residential care facilities. 2. ANS: 1 The strongest predictor of falling for a resident of an assisted living facility is that the resident is someone who has fallen before. Other risk factors include reduced visual acuity, impaired dark adaptation, impacted cerumen, presbycusis, musculoskeletal disorders, balance disorders, peripheral neuropathy, foot disorders, postural hypotension, stroke, and slowed time reaction. Diagnosis of heart disease, recent weight loss, and urinary incontinence individually are not the strongest predictors of falls. 3. ANS: 1 A restraint is anything that restricts an individual’s movement. Restraints are classified as either physical (anything that restricts movement and that cannot be removed by the patient) or chemical (a drug that is given to subdue agitated or confused patients). Physical restraints do not reduce the potential for injury but actually can increase the potential for injury to a patient. Full side rails up is considered a restraint and is often related to falls when patients attempt to climb over them to get out of bed. If safety restraints are applied, they must be removed and released every 2 hours for 10 minutes to provide for range of motion, toileting, nourishment, and comfort measures. 4. ANS: 3 Psychotropic drugs, including antidepressants, sedatives/hypnotics (e.g., benzodiazepines), and antipsychotic drugs, are the most commonly prescribed chemical restraints, and can have serious adverse effects, such as greater confusion, agitation, postural hypotension, and an increased number of falls in older persons. They do not cause hallucination or delusions, constipation, or insomnia. 5. ANS: 1, 3, 4 Intrinsic risk factors, or factors related to the functioning of the individual, are part of the fall risk assessment conducted on a patient. These factors include confusion, weakness, and poor vision. Inadequate lighting and broken wheelchair brakes are examples of extrinsic or environmental risk factors. 6. ANS: 1, 2 The Omnibus Budget Reconciliation Act (OBRA) guidelines that apply to a physician’s order for the use of restraints include duration that restraints may be used and circumstances under which restraints may be used. These guidelines in OBRA were passed in 1987 to protect patients from unnecessary restraint in long-term care (LTC) facilities. It specifically refers to giving patients the right to be free from restraint use for purposes of discipline or convenience and when restraint is not required to treat patients’ medical symptoms. OBRA guidelines do not include recorded nursing assessment data, measures to be taken for injury, or patient consent to be restrained for safety reasons. 7. ANS: every 2 hours A restraint applied to a confused postoperative patient who is pulling on her intravenous (IV) and surgical dressing must be released every 2 hours for 10 minutes to provide for range of motion, toileting, nourishment, and comfort measures. 8. ANS: 1, 2, 3 Classes of drugs that may be used as chemical restraints include antipsychotic drugs, sedative/hypnotic drugs, and antidepressants. Analgesics and skeletal muscle relaxants have no chemical restraint properties. 9. ANS: 3, 4 Nutritional supplements that may reduce the risk of fall-related fractures include vitamin D and calcium. It is thought that people with low vitamin D levels had a greater risk of fractures and that calcium may also help to prevent osteoporosis. Vitamin C, iron, and vitamin B12 do not have any known effect on reducing the risk of fall-related fractures. 10. ANS: 1, 2, 3 Regular exercise and physical training can help prevent falls by improving muscle strength, balance, and flexibility. They include walking, balance, coordination, and functional exercises; muscle strengthening; and multiple exercise types. Regular exercise and physical training do not have any effect on patient alertness or on bone mass. Chapter 12: Immobility 1. ANS: 3 Passive exercises are movements of the patient’s body by another person. Isometric exercises are performed without moving the joint and are done to maintain muscle tone. Active exercises are performed by the person himself or herself. Isotonic exercises mean that the tension remains unchanged and the muscle’s length changes, such as when lifting an object at a constant speed and causing an isotonic contraction. 2. ANS: 1 When moving patients, use a draw sheet or transfer device to avoid tissue trauma and damage to the uppermost layers of the skin caused by shearing of the skin. The purpose of using a draw sheet is to avoid friction and prevent tissue damage to the upper most layers of the patient’s skin. It is not to prevent strain on the caregiver or extension contractures of the patient’s spine. Caregivers can still experience a strain when using a draw sheet if they are not lifting properly or are lifting someone who is too heavy. Bed linens are always disturbed when repositioning a patient, and after movement, the caregiver needs to make sure that the bed linens are dry, smooth, and free of wrinkles. 3. ANS: 2 Skin integrity is best maintained by repositioning the patient at least every 2 hours. Keeping joints in functional positions is directed toward making sure joints are not abnormally flexed or extended. The purpose of range-of-motion exercises is to put each joint that is at risk for loss of motion through its full range of motion to the highest degree possible. Giving eight 8-ounce glasses of water does not prevent skin breakdown. Better to offer the patient a glass of water with each position change. 4. ANS: 1 The first action to take when recognizing an erythematous area on a patient is to document the erythema and instruct nursing assistants to keep the patient off his back. The Norton scale could also be used to identify if the patient is at risk for developing a pressure injury. Reddened areas should never be massaged because that could cause damage to fragile capillaries. Inflatable rings also should not be used because they can cause a concentrated area of pressure and place the patient at a higher risk for developing pressure injury. Heat should not be used because it can increase the patient’s temperature and the metabolic demands of the tissue and put additional stress on the affected area. 5. ANS: 4 Some coughing strategies include taking a single deep breath followed with 3 consecutive coughs in an effort to clear all the air from the lungs with each cough. Another effective coughing strategy is to have the patient take 4 to 6 deep breaths and then cough deeply. The abdominal muscles and diaphragm can be used to expand the lower chest during deep-breathing exercises. After abdominal surgery, have the patient support the abdomen with a pillow to minimize discomfort. Have the patient focus on how much air can be exhaled rather than the force with which it is exhaled. Coughing and deep breathing are most effective in a sitting position and not with the patient positioned on his side. 6. ANS: 1 Constipated patients may strain to defecate, leading to an increase in intraabdominal pressure. The most likely cause is related to the Valsalva maneuver or vasovagal reflex. Especially in older adults, this can lead to cardiovascular alterations, including lightheadedness and fainting. The vasovagal reflex is not related to internal hemorrhage, dehydration, or wound dehiscence (suture line separation). 7. ANS: 2 Urine flows downward from the kidneys by gravity, so when the patient is in a reclining or supine position, the urine flow gets sluggish and urine pools, putting the patient at risk for a urinary tract infection (UTI). Immobility itself does not affect the amount of urine produced by the kidneys, but the peristaltic action of the ureters is not strong enough to maintain a constant flow of urine. There is not increased blood flow to the kidneys. Without the downward pressure on a full bladder against the sphincter muscles, awareness of the need to void is less. Chapter 13: Delirium and Dementia 1. ANS: 1 The primary difference between delirium and dementia is that delirium is typically reversible while dementia is usually irreversible. Agitation is not constant with delirium, and delirious people may be hyperactive, hypoactive, or alternate between the two. With dementia, agitation is constant with a gradual slow progression to combativeness, delusions, hallucinations, and wandering in later stages. Delirium develops over a short period of time while dementia has an insidious onset with gradual steady progression in cognitive and behavioral symptoms. Delirium can last for quite a while and depends upon managing the symptoms and treating or removing the cause while maintaining safety and comfort to reduce anxiety. Dementia is not reversible and is defined as a progressive and significant cognitive decline from a previous level of performance. 2. ANS: 3 The best intervention is to be honest and tell the patient where she is and that her daughter is not there. Frequent orientation to the surroundings and the situation is important for patients with delirium. Sedatives and antipsychotic drugs should be used with great caution with older adult patients because they can increase the risk of death. Calling her daughter in the middle of the night and asking her to come to see her mother, and scolding the patient and telling her to be quiet because she is disturbing other patients, are not reasonable or appropriate interventions. 3. ANS: 1 When a patient with Alzheimer disease (AD) wanders way from the table during meals, the nurse should consult a dietitian to see if finger foods can be provided for the patient. Avoid physical restraints, which can cause anxiety and agitation in confused patients and often can result in patient injuries. Arguing and ordering the patient to sit down and finish his meal does not convey respect and dignity and is not an appropriate action. Asking another patient for help can put the other patient at risk for injury. 4. ANS: 2 When addressing a patient with dementia, it is best to be direct and keep instructions simple. Telling the patient he needs to be dressed in 30 minutes to go to church is too detailed, and telling him to “put his shirt” on needs to be more direct. Also, asking him what he wants to wear can be too confusing and cause anxiety. 5. ANS: 3 Tell the new nurse that frequent attempts at orientation can agitate patients with Alzheimer disease (AD). It is best to try to weave orienting phrases into the conversation. Waiting 5 minutes to ask the patient the same question can also cause anxiety. Consistently telling or asking the patient to repeat the date, time, and place after you say them can also cause anxiety. 6. ANS: 4 The cognitive developmental approach (CDA) is based upon adapting expectations and interventions to the patient’s abilities and not consistently using the same interventions for all patients. It does not include having the patient confront irrational fears, but has the nurse recognize irrational fears so that alternative ways to give personal care can be arranged. Also, insisting that the patient behave as a mature adult at all times is scolding and disrespectful of the patient and can cause anxiety. 7. ANS: Alzheimer disease Alzheimer disease is the most common type of dementia. 8. ANS: acetylcholine Acetylcholine is the major neurotransmitter in the brain. Most Alzheimer disease (AD) drugs act to increase the amount of this neurotransmitter in the brain. 9. ANS: 3, 4, 5 Drug therapy for Alzheimer disease (AD) is not used for moderate dementia, and the benefits gained vary among individuals. A combination of drugs usually arrests the progression of the disease. None of the drugs are curative of the disease and all of the drugs have significant side effects that some patients are not able to tolerate. 10. ANS: 1, 3, 4, 5 Drugs that can cause confusion include digoxin for heart failure, first-generation H2 receptor blockers for peptic ulcer disease, anticholinergics for seasonal allergies, and nonsteroidal anti-inflammatory drugs for arthritis. Antacids for heartburn do not have any properties that can cause confusion in patients. Chapter 14: Incontinence 1. ANS: 1, 4 Habit training or timed voiding is similar to bladder training, but the voiding schedule is based on the patient’s usual pattern. It is used to treat a patient with urinary incontinence and includes checking the patient for wetness every 2 hours, asking the patient to state whether he or she is wet or dry, and having the patient practice interrupting urine flow by contracting the perineal muscles. The patient is not encouraged to void every 2 hours but to void when the patient has the urge and not delay voiding. 2. ANS: 3, 5 Pelvic muscle exercises include strengthening perineal muscles to improve urinary control and continuing the exercises indefinitely to maintain control. The muscles are contracted either for a short time (2 to 4 seconds with brief period of relaxation) or a long time (6 to 12 seconds followed by relaxation for 6 to 12 seconds) and not for 30 seconds and relaxed for 30 seconds. Improvement in urinary control may be noticed after 3 weeks or by up to 6 to 8 weeks and not after just 1 week. The patient does not have to be in a standing position but can also do the exercises effectively while sitting at a desk or while driving. 3. ANS: 1 Intermittent self-catheterization in the home setting is different from institutional catheterization because clean technique may be used at home but not in the hospital setting. As far as health care–associated infections are concerned, it is not necessary for the patient to use sterile technique at home. Clean technique cannot be used in the hospital, even if patients catheterize themselves, or in long-term care facilities because those patients are at much greater risk for a health care–associated infection. Sterile technique must always be used for catheterization of patients in hospitals and in long-term care facilities. 4. ANS: 2 Document that the patient has a pessary to ensure that it will not be forgotten. A pessary is a device that is inserted into the vagina to hold the pelvic organs in place. It is sometimes used as a tool to treat incontinence in women with relaxation of the pelvic structures. A doughnut-shaped pessary exerts pressure on the vaginal wall, lifting the uterus and holding it in the pelvis. When incontinence occurs as a result of the bladder prolapsing into the vagina, other types of pessaries may be used to support the urethra as well. Within 24 hours, and not 1 week, after pessary placement, the patient must be reexamined to ensure proper placement and to rule out urinary obstruction. Bowel obstruction is not a problem with pessaries. The device does not have to be removed every time perineal care is given but removed periodically for cleansing and replacement. 5. ANS: 1, 3, 5 Urge incontinence commonly is the result of an overactive bladder muscle, and medications are often effective in reducing bladder overactivity. Urge incontinence is the involuntary loss of urine shortly after a strong, abrupt urge to urinate. Anticholinergic and muscarinic antagonists (antispasmodics) are the drugs most commonly used for urge incontinence. Urge incontinence is not related to the bladder overfilling, resulting in small amounts of urine being passed to relieve pressure. Urinary tract infection and fecal impaction sometimes cause temporary urge incontinence. Treatment of urge incontinence is aimed at correcting the cause, if possible, and includes antibiotics for infection and the removal of impaction. When the problem is not related to reversible conditions, behavioral techniques, drug therapy, or surgical intervention may be used. 6. ANS: overflow Reflex urinary overflow incontinence is the involuntary loss of urine associated with an overdistended bladder. Small amounts of urine are lost either continually or at frequent intervals. In addition to passing out through the urethra, urine may flow out of the bladder back into the ureters and kidneys and cause hydronephrosis. Patients who have normal sensation usually feel uncomfortable because of bladder distention. Factors that contribute to overflow incontinence are obstruction to urine flow, an underactive detrusor muscle, and impaired transmission of nerve impulses. In addition, some women have overflow incontinence after surgery to treat other types of incontinence. 7. ANS: 1 Stress incontinence is usually caused by relaxation of the pelvic floor muscles and is the involuntary loss of small amounts of urine during physical activity that increases abdominal pressure. Coughing, laughing, sneezing, and lifting are some activities that can cause urine loss. In women, stress incontinence is usually caused by a relaxation of the pelvic floor muscles and the ureterovesical juncture related to pregnancy, childbirth, obesity, and aging. Urethral trauma, sphincter injury, congenital sphincter weakness, urinary infection, neurologic disorders, and stress can cause stress incontinence in both men and women. It can occur after prostatectomy or radiation therapy. It may be successfully treated with behavioral methods such as scheduled voiding and pelvic muscle exercises. The patient is advised to maintain a fluid intake of at least 2000 mL/day and not just 1000 mL/day. If the patient has hypertension, heart failure, or renal disease, a registered nurse (RN) should be consulted about the appropriate recommended fluid intake. Older adults whose fluid intake has been low will need to increase fluid intake gradually to prevent fluid volume overload. Fluids with caffeine (e.g., tea, coffee, cola) have a diuretic effect and should be avoided. These fluids do not stimulate contraction. Surgical repair is not the only form of treatment. The most common surgical interventions now are retropubic urethropexies, pubovaginal slings, and collagen injections. These procedures have largely replaced anterior colporrhaphy and needle suspension. Drug therapy may include alpha-adrenergic drugs such as pseudoephedrine hydrochloride (Sudafed) to increase bladder outlet resistance or oral or topical estrogen to strengthen the bladder outlet in postmenopausal women. 8. ANS: 2 The patient needs to avoid foods that stimulate the anal sphincters to relax. These include chocolate, coffee, tea, and other caffeinated beverages. Raw fruits, fruit juices (especially prune and grape juice), raw vegetables, cabbage, sweets, alcohol, and highly spicy foods stimulate stool production. Conversely, foods that thicken the stool include bananas, rice, bread, potatoes, cheese, yogurt, oatmeal, oat bran, boiled milk, and pasta. 9. ANS: 1 Assessment of fecal incontinence includes determining the last formed stool, recording the usual bowel pattern, stool characteristics, related symptoms, activity, diet, fluid intake, medications, and use of aids to help elimination. An abdominal assessment should also be performed. Urinary output, temperature, or mental status is not necessary to include in the assessment of fecal incontinence. Chapter 15: Nutrition 1. ANS: 1, 2 Only added sugar and saturated fats should be limited to less than 10% of the total daily calorie intake. 2. ANS: 2 Fats provide 9 kcal of energy per gram. Carbohydrates and protein provide only 4 kcal of energy per gram. 3. ANS: 3 A daily value is the percentage of the recommended daily intake of that nutrient that is provided by one serving of the labeled food. 4. ANS: 3, 5 Older people who are less active need fewer calories than they did when they were younger, and moderately active older woman need 300 fewer calories per day than when they were younger. It is not possible for older adults to eliminate all sodium from their diets. Sodium is abundant in most foods except fruit. It is recommended for persons 51 and over who are African Americans or have hypertension, diabetes, or chronic kidney disease to reduce sodium intake to 1500 mg daily. When compared to younger adults, older men need to reduce their daily calories by 600 daily. The use of megavitamins is generally not considered beneficial and could even be harmful to clients. 5. ANS: 4 Lactovegetarian diets include milk, cheese, and other dairy products but exclude meat, fish, poultry, and eggs. 6. ANS: 2 Clients receiving total parenteral nutrition (TPN), which is a nutritional supplement that is administered parenterally into the superior vena cava, need to be closely monitored for air embolism. Other complications include pulmonary-related problems, injury to veins and arteries near the catheter site, infection, electrolyte imbalance, mineral deficiencies, and hyperglycemia, and not hypoglycemia, unless the treatment is suddenly stopped. Vomiting and aspiration are not complications associated with the administration of TPN. 7. ANS: 1 Nutritional recovery syndrome is characterized by hypophosphatemia due to the shift of phosphorus from the plasma into the cells. Potassium levels can also be affected as potassium moves into cells with the glucose during refeeding. Hypocalcaemia, hypernatremia, and hypoglycemia are not related to this syndrome. 8. ANS: 4 The optimal BMI is 20 to 25. 9. ANS: 2 Cognitive restructuring is used to teach patients to identify, challenge, and correct negative thoughts. Stimulus control focuses on the settings or chain of events that precede eating, the kinds of foods consumed, and the consequences of eating. Problem solving is used to identify issues related to eating, set goals, implement interventions, and evaluate outcomes. 10. ANS: 1 = c; 2 = b, 3 = a Persons with anorexia nervosa restrict their food intake so much that they lose excessive body weight. Bulimia is characterized by self-induced vomiting to prevent absorption of food consumed. With binge eating disorders, the individual consumes huge quantities of food at intervals. Chapter 16: Intravenous Therapy 1. ANS: 1 The smaller the gauge, the larger the inside diameter of the cannula. Therefore, a 12-gauge cannula is the largest of the options. A 14-gauge, an 18-gauge, and a 22-gauge cannula are all smaller than a 12-gauge cannula. 2. ANS: 2 A hypotonic solution (less than 285 milliequivalents per liter, or 285 mEq/L) is used if the body fluids are concentrated due to water loss. A hypotonic solution increases fluid in the tissues. Solutions that have the same concentration of electrolytes as normal body fluids have approximately 285 mEq/L; these solutions are called isotonic. An isotonic solution contains 0.9% sodium chloride (normal saline). Hypertonic solutions contain more than 300 mEq/L and increase blood volume when given, drawing fluid from the tissues. A concentrated solution may refer to a hypertonic solution, or a solution that has a higher tonicity than the blood. More concentrated hypertonic solutions are needed when a client has had excessive losses of both sodium and chloride. 3. ANS: isotonic Isotonic fluids are used to supply balanced amounts of water and sodium chloride. 4. ANS: hypertonic Hypertonic fluids are needed when the patient has had excessive losses of both sodium and chloride. 5. ANS: 1, 4 A central line is used when irritating (vesicant) fluids are to be administered, when the client has poor peripheral veins, and when long-term therapy is required. Peripheral veins are used for short-term therapy, when a client has healthy veins and when nonirritating fluids are given. Central lines are contraindicated with infants. Peripheral lines are used for short-term therapy. Some, but not all, antibiotics are infused via a central line. 6. ANS: 4 If the IV infusion is running too slowly, adjust the flow rate and reset the infusion rate to 34 drops/minute. Do not attempt to “catch up” by administering extra fluid rapidly. If the fluid is running too quickly, slow the rate and assess the patient for signs of fluid volume excess. 7. ANS: 3 Fluid volume excess related to fluid overload may cause or be consistent with shortness of breath, a 20-point increase in systolic blood pressure (BP), and a heart rate of 100 bpm. Shock caused by a fluid volume deficit would result in a decreased BP. Anxiety related to hospitalization would not present with symptoms similar to fluid volume excess. Renal failure caused by circulatory collapse would not result in signs and symptoms of circulatory overload and fluid volume excess. 8. ANS: 1, 2, 4 Recommended interventions for an older adult receiving peripheral intravenous therapy include padding the armboard if used, protecting the skin from adhesive tape, and using a blood pressure cuff rather than a tourniquet. Never apply an immobilizer over an infusion site but rather below the site. Do not release traction on the vein after the needle pierces the skin but anchor the vein with the thumb of your nondominant hand to maintain traction until the catheter is inserted to the hub. 9. ANS: superior vena cava A peripherally inserted central catheter (PICC) is a type of central line threaded through a peripheral vein and then advanced, with the tip of the catheter resting in the superior vena cava. 10. ANS: 1 The greatest danger of irrigating an obstructed intravenous (IV) line is forcing blood clots or emboli into the bloodstream, and with central lines the greatest danger is air entering the line and causing an air embolism. Irrigating an obstructed IV line according to protocol should not cause trauma to the blood vessel or rupture to the cannula or infusion site irritation. Chapter 17: Surgery 1. ANS: 2 Older adults in good health who have surgery have positive outcomes similar to younger adults. They are not twice as likely to have surgical complications. If chronic conditions are under control, drug therapy is evaluated, and the patient is well hydrated and nourished before surgery, then surgical risks are greatly reduced. Modern surgical techniques can restore many lost functions and can often improve the patient’s quality of life. 2. ANS: 2 Informed consent requires that the patient is fully awake and aware of what the consent form contains when signing it. Explaining the procedure, whether the patient has alternative options, and the risks to the patient is the physician’s responsibility. If the patient wants to explore other options or has questions about the procedure, then the physician should be contacted. 3. ANS: 3 Right after surgery, the spinal anesthesia patient has potential for injury because movement returns before sensation because of the decreased level of consciousness associated with general anesthesia or other sedatives. The effects of regional anesthesia are brief and the blood flow to the extremities is not affected. With regional anesthesia, sensation and movement are blocked for a brief time, so the affected body part may have potential for injury. It does not last for several weeks. Patients can move the affected body part even though feelings of pain or pressure are present. 4. ANS: 3, 4 Immediate postoperative complications include shock and hypoxia. Wound infection generally doesn’t appear until several days after surgery. Pneumonia and thrombophlebitis are surgical risks for older adult patients, but both conditions would not appear until a few days after surgery. 5. ANS: 4 Since these vital signs seem to be within normal limits, the nurse must compare them to the patient’s preoperative vital signs to determine if there is a great difference. Then the nurse can assess what medications the patient had during surgery, length of time under general anesthesia, and whether the patient is having pain. 6. ANS: 4 Dehiscence is the reopening and separation of the surgical wound. If organs protrude (called evisceration), then saturate the dressing with normal saline; cover the wet dressing with a dry, sterile dressing; and notify the surgeon. Don’t have the patient lie flat in bed because that could open the wound more. Also, reapplying the same dressing may contaminate the open wound. 7. ANS: 1 If a patient voids 20 to 30 mL of urine at frequent intervals, then the patient could be suffering from urinary retention with overflow. This can be caused by the effects of anesthesia or opioids, trauma to the urinary tract, or anxiety about voiding. Bladder damage during surgery would prevent the patient from being able to void and may reveal fluid pooling in the abdomen and pelvis. Fluid volume excess can overload the heart and aggravate the stress of surgery. This would result in clear, pale urine as the body attempts to excrete excess volume. With kidney failure, the kidneys are unable to produce enough urine to remove wastes from the body and urine output would fall dangerously low. Normal urine output needs to be at least 30 mL/hour. 8. ANS: 2, 3 During a hand-off report on a patient with a paralytic ileus, information about the patient’s nasogastric tube and suction used and bowel sounds should be passed along to the oncoming nurse. Information about a patient with a paralytic ileus need not include the patient’s ability to walk or the need for a blood transfusion. Also, a patient with a paralytic ileus is kept NPO and does not take any liquids by mouth. 9. ANS: 1, 2, 3, 4 Preoperative medications include sedative/hypnotics, opioid analgesics, antiemetics, and anticholinergics. They do not include nonsteroidal anti-inflammatory drugs. 10. ANS: 1, 2, 3, 4, 5 Guidelines to prevent wrong site surgery include confirming that the operative site is marked before giving any sedating drugs, verifying that the appropriate equipment is available for the procedure, confirming that the consent form has been signed and witnessed, verifying with the patient the procedure that is to be performed, and conducting a time-out before the first incision to resolve any concerns. Chapter 18: The Patient with an Ostomy 1. ANS: 1, 2 Colostomies and ileostomies are surgically created to remove fecal matter from the intestines. Ileal conduits, vesicostomies, and ureterosigmoidostomies are ostomies of the urinary tract that drain urine from the kidney, ureters, or bladder. 2. ANS: 4 A colostomy will produce the most formed stool because the closer to the rectum, the more formed the stool. A jejunostomy has the most liquid type of stool, followed by a duodenostomy, and then an ileostomy with a semiliquid stool. 3. ANS: beefy red A new intestinal stoma on the first postoperative day should be beefy red in color. When healed, it should be rose red and somewhat darker than the color of the oral mucosa. A very pale, bluish, or black stoma has impaired circulation and must be reported to the RN and the physician immediately. 4. ANS: 3 After ileostomy surgery, the patient is at risk for fluid volume deficit because fluid normally reabsorbed in the colon is lost through the ileostomy. Normally, there is minimal blood loss during the surgical procedure. Postoperatively, the presence of some blood and mucus in the drainage is normal at first. Postoperatively, the patient has a nasogastric tube attached to low suction to prevent vomiting. Intravenous fluids are given for several days, after which oral intake is gradually increased. The stoma does not have to be healed completely before oral fluid intake is begun. 5. ANS: 4 The nurse should reinforce to the patient to cut the opening on the wafer no more than ¼ inch larger than the stoma. Every 3 to 7 days, and not daily, the patient should remove the appliance to cleanse around the stoma. After removing the adhesive, the patient should wash the stoma and the area around it with water and not with moisturizing soap. If soap is used, it should be nonoily and rinsed off thoroughly. To prevent skin irritation, gently pat dry the skin around the stoma and never vigorously rub the skin. 6. ANS: 1 The most appropriate reply to a patient about foods to eat that do not encourage the passing of gas is to gradually try them 1 day at a time to see how you tolerate them. It does not mean that the patient will never again be able to eat those foods. Different foods can be tolerated better by different patients. Some patients can have problems with flatus with some foods and other patients can tolerate those same food. Vitamins do not replace fruits and vegetables, so the patient needs to try different fruits and vegetables to see which ones the patient can tolerate. Fibrous vegetables should be avoided. 7. ANS: 3 To help the 3-day postoperative patient adjust to his stoma and learn to do self-care, encourage him to participate in care once he begins looking at the stoma. Do not shield the stoma until the patient asks to see it because patients should be able to watch stoma care from the beginning. Don’t threaten the patient that, if he doesn’t do the stoma care, then no one will do it. If the patient does not begin to show some interest in learning self-care, then seek supportive help from the wound care nurse. Family members can be included in the instructions for the care if they and the patient so desire. 8. ANS: obstruction If a patient with a new continent ileostomy has abdominal distention and hypoactive bowel sounds, then the patient could be suffering from a bowel obstruction. 9. ANS: 3 An Indiana pouch is a continent internal reservoir that allows for the storage and controlled drainage of urine. A cutaneous ureterostomy, ileal conduit, and ureteroileostomy are all incontinent types of urinary diversions. 10. ANS: 1 The main advantage of an ileum neobladder is that the patient does not have a stoma for urine drainage. This orthotopic bladder is a new bladder constructed from a segment of bowel that is placed in the normal bladder location and attached to the urethra so urine drains into the reservoir and is eliminated through the urethra instead of a stoma. Continence is not always maintained, so an artificial urinary sphincter is sometimes implanted. Urine is not eliminated through the rectum, and there is no need for the neobladder to be drained daily. Chapter 19: Palliative and Hospice Care 1. ANS: 1, 2, 3, 4. 5 A loss is separation from something that is valued. It can be an object, a person, a job, a developmental milestone such as a child leaving home, a change in appearance, etc. 2. ANS: 2 The focus of palliative care is to provide comfort, rather than to achieve a cure. Providing supportive care while allowing natural death in a pain- and symptom-controlled environment is a part of palliative care. Finding alternative methods of treatment of a disease may be appropriate when there is still some hope for a cure, but this patient has advanced cancer and has decided to discontinue treatment. Delaying death for as long as possible by any means is not following the patient’s decision to discontinue treatment. Hastening death when no hope exists for a cure is not consistent or ethical within the role of a health care provider. 3. ANS: 2 Uncomplicated grief is a normal, healthy response to a loss. It assists the person in accepting the reality of death. When grief begins before a death occurs, or when the reality that death is inevitable is known, that uncomplicated grief is called anticipatory grief. Dysfunctional grief is not uncomplicated and may be prolonged, unresolved, or disruptive. Reactive grief is not a defined type of grief. Exaggerated grief may be defined as dysfunctional. 4. ANS: 3 According to Kubler-Ross, bargaining is a stage of grief in which a person, recognizing the terminal nature of the illness, seeks to “buy” more time. 5. ANS: 1 The hospice approach to pain management is that prevention of pain and relief from discomfort should be a priority and handled with compassion. Hospice care embraces palliative care with a focus on quality of life, comfort, and dignity near the end of life. There is no need to use caution to avoid addiction with a dying patient. The patient should not be kept heavily sedated. Most patients want their pain relieved without excessive grogginess or sleepiness. Terminally ill patients who do experience physical pain should have medication available and provided whenever needed. Pain relief is best achieved by scheduled administration rather than administration only when pain returns. 6. ANS: 2, 4 Life review is thought to help confirm a person’s worth and help that person find meaning in his or her life. It also helps to resolve old regrets and mistakes. 7. ANS: 3 Hearing is thought to be perceived longer than other senses as death nears. The husband may find some peace in supporting his wife through the dying experience. 8. ANS: 3 Many nurses deal with death much more often than other people. The only option that recognizes and accepts the assistant’s response with compassion is 3. None of the other options are therapeutic. They deny the assistant the opportunity to learn and grow from this experience. 9. ANS: 4 Of the options presented, only the power of attorney identifies a person who can make health care decisions when the patient is unable to. The other documents described address organ donation, naming an executor, and advance directives. 10. ANS: 2, 3, 4, 5 Five Wishes communicates how the patient wishes to be treated in their final days. Distribution of property is not a component of this document. Chapter 20: Complementary and Alternative Therapies 1. ANS: 3 The use of herbal remedies instead of receiving chemotherapy and radiotherapy by a cancer client is an example of alternative or nontraditional therapy. Complementary therapy is nontraditional therapy used along with conventional therapy. Conventional therapy focuses on conditions that are treated by correcting the underlying physiologic processes with drugs, surgery, diet, and physical manipulation. Allopathic therapy refers to medical therapy that is sometimes involved with Western medicine, biomedicine, evidence-based medicine, or modern medicine. 2. ANS: 2 Guided imagery uses mind and body interventions and focuses on interactions among the brain, mind, body, and behavior. Chiropractic is a form of manipulative and body-based practices and refers to manipulation or movement of one or more parts of the body. Ginkgo biloba is an herbal remedy drug and is used to control seizures. Homeopathy is a form of the whole medicine system and is built on complete systems of theory and practice that have come from different cultures separate from conventional medicine. 3. ANS: 1, 2, 4 Herbs, minerals, and vitamins are all consumed with an intended health outcome in mind. Tai chi and Pilates are physical activities that do not involve any consumable products. 4. ANS: 4 All of these therapies may be used to alleviate pain and improve function; however, the unique feature of chiropractic is the use of spinal manipulation. 5. ANS: 2 The safety and efficacy of nonmainstream practices and therapies often is not known because they are not regulated like conventional therapies. Because nonmainstream products may interact with conventional drugs, health care providers need to be aware if patients are using them. 6. ANS: 2 Some Ayurvedic medicine products have been found to contain toxic chemicals, such as lead, mercury, and arsenic. They are marketed as dietary supplements so do not have to provide evidence of safety and efficacy. Although they may interact with conventional medications, that is not the most serious concern. 7. ANS: 1, 2, 3, 4 All statements are true except option 5. Most states have some requirement such as a license or registration to practice acupuncture. 8. ANS: 4 Mind–body techniques are widely used in many other countries, but are relatively new in the United States. Research has found that the use of natural products is more common than the other therapies listed. 9. ANS: 1, 4, 5 The patient has a right to choose nonmainstream therapies. The primary nurse responsibilities are to document use of these therapies and to direct the patient to sources of information about them. It is not the nurse’s role to prescribe treatments. 10. ANS: 3 Magnet therapy, light therapy, and healing touch all focus on the manipulation of energy fields to affect health. Chapter 21: Neurologic System Introduction 1. ANS: 1, 2, 3, 4 Neurotransmitters include acetylcholine, norepinephrine, epinephrine, and dopamine. Monoamine oxidase (MAO) inhibitor is not a neurotransmitter, but an enzyme that degrades dopamine and increases available dopamine. 2. ANS: 1, 2, 3, 5 Normal aging of the neurologic system includes a decrease in the number of neurons, deposits of lipofuscin and amyloid in nerve cells, retention of normal cognition despite loss of neurons, and decrease in brain size and enlargement of ventricles. Reflexes are usually intact, except the Achilles tendon jerk is often absent. 3. ANS: 3 A stuporous altered level of consciousness response is defined as decreased responsiveness accompanied by lack of spontaneous motor activity. Somnolent is unnatural drowsiness or sleepiness. Lethargy describes excessive drowsiness. Semicomatose is defined as a stuporous patient who can be aroused. 4. ANS: 90 degrees A patient with normal strength should be able to lift each leg at least 90 degrees while lying supine. 5. ANS: 3 To help decrease intracranial pressure (ICP), the nurse should avoid flexing the patient’s neck and hips. Suctioning the patient frequently, encouraging isometric exercises, and providing continuous stimulation to the patient increase ICP. 6. ANS: 2 The earliest sign of increased intracranial pressure (ICP) is a change in the patient’s level of consciousness. Pupillary and blood pressure changes are a late sign of increased ICP. Motor and sensory functions may change but are not the earliest signs of increased ICP. Chapter 22: Neurologic Disorders 1. ANS: 1, 2, 5 Factors that trigger migraines headaches include alcohol, menstruation, and certain foods. Exposure to light can aggravate a migraine after it has started. Changes in environmental temperature do not trigger migraines. 2. ANS: 3, 4, 5 Nursing measures for a patient having a generalized seizure include turning the patient to one side to maintain a patent airway, moving objects away from the patient to prevent injury, and noting the time the seizure began. The patient should not be restrained, so any type of restraints should not be applied. Inserting a tongue blade between the teeth can result in injury to the mouth. 3. ANS: 2, 3 Proper management of an external ventricular drainage system includes strict aseptic technique when cleansing the insertion site and keeping the zero point of the drip chamber at the level of the external auditory canal. The drainage tube can be clamped when the patient is repositioned and then the drainage tube is restored to the correct level and unclamped. The drainage tube should not be irrigated. 4. ANS: 3 To help decrease intracranial pressure (ICP), the nurse should avoid flexing the patient’s neck and hips. Suctioning the patient frequently, encouraging isometric exercises, and providing continuous stimulation to the patient increase ICP. 5. ANS: dopamine A deficit of the neurotransmitter dopamine is associated with Parkinson disease and can contribute to the loss of motor function. Chapter 23: Cerebrovascular Accident 1. ANS: brainstem The brainstem is the area where the structures that control respirations and heart rate are located. 2. ANS: 3 Recognizing symptoms of a transient ischemic attack (TIA) is important because it is a warning sign of a future stroke. TIA is not a symptom of a brain tumor because the neurologic signs and symptoms resolve with no permanent effects and no permanent disability. TIAs are related to embolic strokes and not hemorrhagic strokes. 3. ANS: 1, 2, 3, 4, 5 Signs and symptoms present in both transient ischemic attack (TIA) and stroke include visual disturbances, dysphagia, drooping mouth, confusion, and weakness. 4. ANS: 4 Transient ischemic attacks (TIAs) and stroke are different because an infarction occurs with stroke but not with a TIA. Weakness and impaired balance are symptoms of both stroke and TIA, and anticoagulants are often used with both conditions. Brain imaging studies can show circulatory changes with both TIAs and stroke. 5. ANS: 4 The nurse needs to notify the physician if a patient taking an anticoagulant has an international normalized ratio (INR) greater than 3 because of the risk of bleeding. An INR of 2 to 3 is within normal limits. The physician does not have to be called for an INR of 1.5. 6. ANS: 1 Ischemic strokes occur in 80% of strokes. An incomplete stroke could be thought of as a transient ischemic attack (TIA). Hemorrhagic strokes account for 20% of all strokes. A subarachnoid hemorrhage is a type of hemorrhagic stroke that occurs between the arachnoid and pia mater layers of the brain covering. 7. ANS: dysarthria Dysarthria is present when an alert stroke patient speaks slowly with great effort and with prolonged words that are hard to understand. 8. ANS: 2, 4, 5 Modifiable risk factors for stroke include those factors that can be changed, such as obesity, hypertension, and cigarette smoking. Nonmodifiable risk factors that cannot be changed include age and gender. 9. ANS: 1, 2, 3 Factors that are necessary for the most successful use of recombinant tissue plasminogen activator (rt-PA) in the stroke patient include that the patient is not taking warfarin (Coumadin), that the medication is only given after the ischemic stroke, and that the intravenous (IV) administration of the drug is given within 3 hours of the onset of symptoms. In some select patients, it can be given between 3 and 4.5 hours after the onset of symptoms. The drug is not given concurrently with heparin and the drug is not given deep, intramuscularly into a large muscle mass but always given IV. 10. ANS: 2, 3, 5 The interventions that are appropriate for a long-term care stroke patient with aphasia are helping the patient find the right word if the patient becomes frustrated while attempting to find the word, give praise to the patient when attempting to verbalize, and establish a system such as patient blinks for the nonverbal patient to communicate. The nurse should not insist that the patient express needs verbally and should also not encourage families to speak for the patient rather than expecting the patient to speak. Chapter 24: Spinal Cord Injury 1. ANS: 2 A patient with a complete transection of the spinal cord at T8 has paraplegia. A patient with a high cervical injury at or above C5 will always be dependent on a ventilator. A patient who cannot be aroused even by a powerful stimulus is said to be in a coma or comatose. Tetraplegia is used to be called quadriplegia and refers to a patient with a high cervical injury who has loss of motor and sensory function in all four extremities. 2. ANS: 1 Spinal shock is resolving when there are spastic, involuntary movements of the extremities. Blood pressure and the patient sensing light touch and pressure have no relationship to the resolving of spinal shock. During the period of spinal shock, and not with the resolution of spinal shock, paralysis is described as flaccid and the involved extremity or muscle group has no tone. 3. ANS: autonomic dysreflexia Autonomic dysreflexia is a potentially dangerous problem and is an exaggerated response of the autonomic system to some noxious (painful) stimuli. It occurs in patients whose spinal injury is at or above the level of T6. 4. ANS: 3 A patient’s bladder begins to empty spontaneously after spinal shock has resolved because intact reflex activity is causing the bladder to empty. The bladder becomes spastic and may spontaneously empty. Generally, in 1 to 2 years, a gradual reduction in spastic episodes occurs. It does not mean that the patient has regained normal bladder control, or that the spinal cord is beginning to heal. The patient may be a good candidate for bladder retraining. 5. ANS: 1, 2, 4, 5 Patient teaching for women with spinal cord injuries includes that pregnancy is still possible and that, if pregnancy occurs, cesarean section will be necessary if the lesion is high. Also, menstrual cycles will resume in women with spinal cord injuries. Although there may be a lack of vaginal sensation, some women with spinal cord injuries do experience orgasm even if it is not vaginally triggered. 6. ANS: 3, 4, 5 Interventions for a suspected spinal cord injury (SCI) patient should include opening the airway using the jaw-thrust method instead of the head tilt–chin lift method to prevent further damage to the spinal cord. Once the airway has been opened, 100% O2 may be administered by mask and manual resuscitator (e.g., an Ambu bag). The risk of additional damage is especially high with cervical injury. It is also important to maintain alignment and immobilization of the spinal column and avoid any flexion of the neck, even that caused by propping the patient’s head on a pillow or other support. 7. ANS: 1 The purpose of a skeletal traction device after a spinal cord injury (SCI) is to align and immobilize the vertebrae to prevent further cord damage. Skeletal traction devices do not apply tension to the spinal cord to keep it straight, nor do they have any relationship to healing of the spinal cord. The SCI traction device does not ensure an open airway because the neck should already be in appropriate alignment to keep the airway open. 8. ANS: 3 Methylprednisolone needs to be given within the first 8 hours of injury to spinal cord injury (SCI) patients to reduce damage to the cellular membrane of the cord and limit the neurologic effects of the injury. This drug is not used to prevent allergic reactions to diagnostic dyes, nor does it have any effect on boosting patients’ immune system. This drug does not promote regeneration of neurons. 9. ANS: 3 Nursing care during the acute phase of spinal cord injury (SCI) should include avoiding grasping muscles when performing range-of-motion exercises and instead supporting the joints above and below the affected muscle groups with the caregiver’s palms of the hands. Injectable drugs should be administered above the level of paralysis for better absorption of the medication and to avoid injury. Patients in cervical traction should never turn themselves to maintain muscle strength. Passive range-of-motion exercises need to be performed by the health care provider. Teaching catheter care is not performed during the acute phase of an SCI but is addressed during the rehabilitation phase of the injury. Halo vests allow the paralyzed patient to be moved out of bed and allow the patient who is not paralyzed to be ambulatory. 10. ANS: 1, 3, 5 Postoperative care for the laminectomy patient includes inspecting the skin under the back brace for signs of pressure, irritation, or skin breakdown; administering analgesics and muscle relaxants as ordered to manage pain; and comparing neurologic findings with preoperative assessments and reporting any decrease in sensory or motor responses to the physician. To reduce strain on the operative site, the bed needs to be kept flat or only slightly elevated and not in a high Fowler position. Inform the physician if clear, not bloody, drainage is observed coming from the incision. Clear drainage could indicate a cerebrospinal fluid (CSF) leak. Chapter 25: Respiratory System Introduction 1. ANS: 3 Turbinates are folds of tissue on the side walls of the internal nose. They increase the surface area that inspired air crosses, and that air is quickly warmed to body temperature. They also contain openings through which secretions drain from the sinuses. Turbinates do not trap inspired particles or have any effect on inspired microorganisms. They also have no odor detection properties. 2. ANS: 1, 2, 3, 4 The anatomic and physiologic changes in the nose, sinuses, and throat in older people include thinning of the mucous membrane, more frequent nasal obstruction because of the softening of the cartilage of the external nose, decreased mucous production, and decreased sense of smell. Older people have a greater risk of epistaxis, especially those taking anticoagulants to slow blood clotting. 3. ANS: 1 When performing tracheal suctioning, no more than 10 to 15 seconds should be taken to remove the catheter and apply suction because the process removes oxygen as well as secretions and can cause the patient to become hypoxic. 4. ANS: 1, 4, 5 Nasal hairs and mucus trap particles that enter the airway. Tonsils and adenoids are lymphoid tissue that protects against pathogens that enter the pharynx. The Eustachian tubes equalize pressure between the middle ear and the environment. The pleura surrounds the lungs. 5. ANS: 4 Orthopnea specifically refers to difficulty breathing in a flat position. Dyspnea is difficulty breathing, bradypnea means slow respirations, and tachypnea is rapid respirations. 6. ANS: 1 Pack-years is a term used to quantify a smoking history. It is obtained by multiplying the packs smoked each day times the numbers of years that the person smoked. 7. ANS: 2 A wheeze is a sound made when air is forced through narrowed airways. It is commonly heard in patients with asthma and COPD. It may be high pitched or low pitched. 8. ANS: 3 An iodine radioisotope is used in contrast media during imaging procedures. Iodine is also found in seafood. Patients who are allergic to seafood may also be allergic to iodine-based contrast media. Therefore, a medium that does not contain iodine may be used or the patient may be pretreated with antihistamines to prevent an allergic reaction. 9. ANS: 1 Readings below 90% should be reported to a supervisor. The patient’s oxygenation status is less than normal and the oxygen available to the tissues is inadequate. 10. ANS: 3 Both first- and second-generation antihistamines have similar effects. The main difference is that first-generation drugs cause more drowsiness than second generation. Chapter 26: Upper Respiratory Disorders 1. ANS: 4 After nasal surgery, if the mustache dressing used to absorb drainage becomes saturated, then the nurse needs to change it. The nurse also needs to document the number of dressings saturated and the frequency of changes. Only the surgeon should remove the packing. Just removing the dressing and not applying a new one would not absorb drainage but may cause it to drip onto the patient. Just reinforcing the dressing would make the dressing too bulky and could prevent absorption of drainage from the nose. 2. ANS: 3 When a postoperative patient is restless with an increased heart rate from 70 to 90 bpm and a respiratory rate of 20/minute, and no fresh bleeding is evident on the nasal dressing, then the nurse needs to inspect the back of the throat. Also, the nurse needs to check for frequent swallowing and inspect any vomitus and stool for signs of blood or red, maroon, or black stools. The physician needs to be notified if there are any indications of excessive bleeding; frequent saturation of the dressing with blood; increased pulse and respirations; restlessness; decreased blood pressure; frequent swallowing; and hematemesis. Blood would be ordered based upon the patient’s diagnostic laboratory results. Vital signs do not need to be taken again. Inspecting the back of the throat would be a faster intervention and alert the nurse more quickly. If there is blood in the back of the throat, then giving the patient fluids could cause vomiting and possible aspiration. 3. ANS: 1, 2, 3 A patient who has asthma, nasal polyps, and an aspirin allergy is said to have triad disease. Laryngeal nodules and sinusitis are not considered part of triad disease. 4. ANS: 1 Immediate treatment of epistaxis includes having the patient sit down and lean forward and then pinch and apply direct pressure to the nostrils. Placing the patient in semi-Fowler position with head tilted back or lying supine with a cold pack to the nose would only promote blood to flow down the back of the throat, causing nausea and vomiting and not stopping the bleeding. Sitting up and leaning forward with the head between the knees and no pressure on the nostrils would not control or stop the bleeding. 5. ANS: 3 The priority patient problem for a patient who had a total laryngectomy 24 hours ago is potential airway obstruction. The patient’s oxygen status must be monitored frequently so that factors such as positioning, fluids, and humidification can be adjusted as needed. Anxiety, pain, and impaired communication are important patient problems, but potential airway obstruction takes priority over them. 6. ANS: 1, 3, 4 The differences in needs for a postoperative supraglottic laryngectomy patient and a postoperative total laryngectomy patient are that the total laryngectomy patient will be able to swallow more easily. Also, the supraglottic laryngectomy patient will have a temporary tracheostomy and be at greater risk for aspiration, while the total laryngectomy patient’s tracheostomy will be permanent. The voice on the total laryngectomy patient will be lost and that patient is more likely to have a radical neck dissection. The voice on the supraglottic laryngectomy patient will be preserved and that patient will not need a radical neck dissection. Chapter 27: Acute Lower Respiratory Tract Disorders 1. ANS: 1 Common complaints related to respiratory disorders include cough, dyspnea, and pain. When assessing a cough, it is important to include the onset, duration, frequency, type (wet or dry), severity, and related symptoms, such as sputum production and characteristics (color, consistency, odor, amount) and pain. Just documenting “coughing up a lot” is too subjective and not objective enough. Documenting “physical activity seeming to cause coughing spells” is also not complete enough. The word “seem” should not be used when documenting unless it is a direct quote from the patient. And “coughing up less sputum than yesterday” does not relay all of the characteristics of the sputum. 2. ANS: 4 Both influenza (flu) and the common cold are equally likely to have serious complications such as viral and bacterial pneumonitis. The diagnosis of each is usually based upon the patient’s history and physical findings. Influenza is not just a severe cold but an acute viral respiratory infection accompanied by a fever, although patients with severe cases of the common cold can also develop fever. The common cold is also a viral infection that invades the upper respiratory tract and is spread similar to the flu via airborne droplets. The common cold does not require antimicrobial therapy. 3. ANS: hypoxemia Edema and secretions that occur with pneumonia interfere with the exchange of gases in the lungs. Hypoxemia means that the level of O2 in the blood is low. Patients with hypoxemia are restless and tachycardic, and are tachypneic. Because normal oxygenation is essential for all body tissues, efforts must be made to improve the patient’s gas exchange. 4. ANS: 4 In trauma cases, a chest wound may be present. If air can be heard or felt moving in and out of the wound, then it is called a sucking chest wound. Always cover any open chest wound with an airtight dressing taped on three sides. This is called a vented dressing because it lets air escape through the chest wound but prevents additional air from entering the chest through the wound. If the dressing completely sealed an open chest wound, then air could continue to leak from the lung into the pleural space and accumulate in the space, causing a tension pneumothorax. The vented dressing allows air to escape and not drainage from the pleural space. Sealing the wound has nothing to do with preventing bacterial contamination. The vented dressing allows air to escape from the injured lung and does not prevent it from escaping. 5. ANS: 1 The term flail chest refers to an injury in which two adjacent ribs on the same side of the chest are each broken into two or more segments. The affected section of the rib cage is detached from the rest of the rib cage and moves independently, so that the segment moves in with inspiration and out with expiration. The pattern of movement is exactly the opposite of the movement of an intact chest wall and is called paradoxical movement. Ventilation is impaired, and the patient becomes hypoxemic. With a tension pneumothorax, air repeatedly enters the pleural space with inspiration, causing the pressure to rise. Because air is not escaping from the wound, the accumulating pressure causes the affected lung to collapse. The heart, trachea, esophagus, and great blood vessels shift toward the unaffected side. This is called a mediastinal shift, a condition that interferes with blood return to the heart. This is a medical emergency because both the respiratory and circulatory systems are affected. If not corrected, then cardiac output falls and the patient dies. The main cause of respiratory alkalosis is hyperventilation, a compensatory breathing mechanism resulting in a loss of carbon dioxide. Cheyne-Stokes respirations are related to severe brain pathology. The breaths become progressively deeper and then become more shallow, followed by a period of apnea. 6. ANS: 1, 2, 5 Interventions to decrease the risk of further emboli include antiembolism and pneumatic compression stockings, active and passive range-of-motion exercises for immobilized patients, and early ambulation after surgery. Do not wait for wound healing to being ambulation. Also, avoid constricting clothing such as garters or tight girdles and avoid prolonged pressure on the back of the knee. Cushions and pillows should not be placed under the legs where circulation might be impaired. Chapter 28: Chronic Lower Respiratory Tract Disorders 1. ANS: 4 During the late phase, which lasts several hours or days, the airways are hyperresponsive. The patient is at risk for another acute episode until the late phase subsides. During the early phase of an acute episode, the airways constrict (bronchoconstriction or bronchospasm) and become edematous. Mucus secretion increases (not decreases) and the patient becomes hypoxemic with compensatory hyperventilation. 2. ANS: 1, 3 Appropriate drugs to relieve acute asthma symptoms include beta2-receptor agonists and anticholinergics. Anticholinergics enhance the bronchodilating action of beta2-receptor agonists. Drugs used to treat asthma are classified as those that provide long-term control (“controllers”) and those that relieve acute symptoms (“relievers”). Controllers are drugs that provide long-term control such as systemic corticosteroids (used for asthma that does not respond to other controllers) and leukotriene modifiers. A decongestant or nasal decongestant is a type of pharmaceutical drug that is used to relieve nasal congestion in the upper respiratory tract. The active ingredient in most decongestants is either pseudoephedrine or phenylephrine. 3. ANS: 2 Many chronic asthma patients are taught to use peak expiratory flow rate (PEFR) meters routinely. Initially, the patient uses the meter twice daily to establish a baseline (personal best) PEFR and then daily to monitor level of control. When a daily PEFR reading is 80% to 100% of the patient’s personal best, the patient should continue current medications. 4. ANS: 3 Chronic bronchitis is bronchial inflammation characterized by increased production of mucus and chronic cough that persist for at least 3 months of the year for 2 consecutive years, as well as by impaired ciliary action. The inflammation, which is caused by inhaled irritants (including cigarette smoke), causes blood vessels to dilate and the mucosa to become edematous. Centriacinar emphysema is associated primarily with cigarette smoking and affects mainly the respiratory bronchioles. The walls of respiratory bronchioles enlarge and break down, whereas the alveoli remain intact. Elastic recoil diminishes, and the airways partially collapse. Acute asthma attacks can be triggered by allergic reactions to substances in the environment, by exercise, and by infection; stress can aggravated them. Mycobacterium tuberculosis, an acid-fast aerobic bacterium, causes tuberculosis. The disease is spread through droplets emitted during coughing, laughing, sneezing, and singing. Drug-resistant strains include multidrug-resistant tuberculosis (MDR-TB) and extensively drug-resistant tuberculosis (XDR-TB). 5. ANS: 2 Hypoxic drive is what tells the chronic obstructive pulmonary disease (COPD) patient to breathe. When a COPD patient has a hypoxic drive, the nurse needs to make sure that the patient’s O2 therapy does not exceed 3 L/minute. High levels of O2 are not administered because patients with COPD may rely on hypoxic drive to breathe. A healthy person’s respirations are stimulated by rising PaCO2 levels. The patient with COPD who retains CO2, however, has adapted to high blood CO2 and relies on low PaO2 to stimulate breathing. A high concentration of O2 may raise the PaO2 level so that the patient’s stimulus to breathe is lost and respiratory depression may result. The patient needs pursed-lip breathing and not deep-breathing exercise to improve oxygenation. The nurse should instruct the patient to breathe in through the nose and exhale slowly through the mouth, with the lips almost closed. Pursed-lip breathing reduces the collapse of airways with exhalation and reduces dyspnea. The patient should not remain inactive and in bed. Pulmonary rehabilitation programs are individualized and use progressive exercise with the patient walking 10 to 15 minutes every day or every other day. The goal is to exercise comfortably for 45 minutes to 1 hour daily or every other day. Many COPD patients live with constantly high levels of CO2. Respiratory acidosis or retention of CO2 must be confirmed by blood gas analysis. 6. ANS: 4 The nurse needs to contact the nursing supervisor to report signs of possible heart failure. Signs of failure include increasing dyspnea, decreasing urine output, tachycardia, and dependent edema. Patients with chronic bronchitis and emphysema are at risk for right-sided heart failure that eventually affects the left side of the heart as well. The patient’s O2 flow rate should not be higher than 3 L/minute except in a code. Increased walking should not be done because it would increase dyspnea and heart rate. Place the patient in a high Fowler position or seat the patient on the bedside with the arms folded on the overbed table to promote full expansion of the lungs. The findings need to be documented but only after the patient has been treated and the supervisor notified. 7. ANS: 1 The first priority for a patient with cystic fibrosis is airway obstruction. Airway and breathing are always the top priorities when caring for patients. Cystic fibrosis is a hereditary disorder characterized by dysfunction of the exocrine glands and the production of thick, tenacious mucus. Cough is the first pulmonary symptom. Over time, but not initially, symptoms progress with increasing dyspnea, decreasing exercise tolerance, potential for infection, and weight loss. Potential for fluid volume deficit is not one of the top priorities for cystic fibrosis. 8. ANS: 1, 2, 3, 4 Patient teaching for active tuberculosis includes a balanced diet to help the body recover from an infectious disease, covering the mouth when coughing to prevent spreading the infection, completing the entire course of therapy to prevent a recurrence of the disease, and taking antitubercular drugs at bedtime to reduce nausea and vomiting. People with tuberculosis are usually hospitalized for just a short time, if at all, so that efficient patient teaching and written material can be generated. Just taking the antitubercular drugs does not prevent transmission of the disease. The patient’s sputum cultures need to show low counts of acid-fast bacilli before the patient can be discharged. 9. ANS: isoniazid (INH) Isoniazid (INH) is the primary drug for the prevention and treatment of tuberculosis. An example of an initial regimen for a person with culture-positive pulmonary tuberculosis caused by drug-sensitive organisms is as follows: INH, rifampin, pyrazinamide, and ethambutol given every day for 56 doses. The patient would then continue therapy with only INH and rifampin daily for 126 doses. 10. ANS: smoking Lung cancer, the leading cause of cancer death in the United States, is usually caused by cigarette smoking and is most treatable if detected while still localized. Chapter 29: Hematologic System Introduction 1. ANS: type O People with type O blood have neither the A nor the B antigen. Those with type A blood have the A antigen, those with type B blood have the B antigen, those with type AB blood have both the A and B antigens. 2. ANS: platelets Petechiae are small (1 to 3 mm), red or reddish purple pinpoint spots on the skin due to blood capillaries breaking and leaking small amounts of blood into the surrounding tissues. Petechiae can be confused with a skin rash. Petechiae generally signal that the patient has a very low platelet count. 3. ANS: type O People with type O− blood are considered universal donors because their blood does not contain any of the A, B, or Rh antigens and can safely be given to anyone. Those with AB+ blood are considered universal recipients because their blood contains the A, B, and Rh antigens, so they can safely receive any type of blood. 4. ANS: 4 While receiving a blood transfusion, if the patient experiences back or chest pain, fever, or chills, then stop the transfusion immediately and keep the intravenous line open with normal saline. Other emergency reactions include decreased blood pressure, urticaria, wheezing, dyspnea, coughing, or blood in the urine. Then take the vital signs and notify the physician, nursing supervisor, and blood bank immediately. Acetaminophen should not be administered unless ordered by the physician. Anticipate administering O2, epinephrine, Solu-Cortef, furosemide (Lasix), and antipyretics as prescribed by the physician. There are four main types of transfusion reactions with blood or any of the blood components: (1) hemolytic, (2) anaphylactic, (3) febrile, and (4) circulatory overload. Save the unused portion of the blood bag for the blood bank and anticipate collecting blood and urine samples from the patient for evaluation. 5. ANS: 4 When a patient with orthostasis suddenly moves from a sitting or lying to a standing posture, the blood pressure falls putting the patient at risk for fainting and falling. Someone should be present for support and the patient should be instructed to move slowly. 6. ANS: 3 Petechiae are tiny red spots on the skin. In contrast, ecchymoses (also called bruises) are larger purple discolorations. When bleeding occurs under the skin, the lesion is called purpura. As they heal, purpura lesions go through the same color changes as bruises. 7. ANS: 1, 2, 3 The first three options are correct. Fasting is not necessary. The specimen is usually taken from the iliac bone, specifically the posterior superior spine of the pelvis. 8. ANS: 2 Platelets play a critical role in blood clotting. A patient with a low platelet count is at risk for bleeding. 9. ANS: 1, 3, 4 To minimize trauma and possible bleeding, he should shave with an electric razor and use a soft toothbrush. He must not engage in contact sports while on this treatment because of the potential for injury. Aspirin and NSAIDs like ibuprofen are contraindicated because they impair the clotting process. The amount of fluid consumed in a day is not relevant to his risk for bleeding. 10. ANS: 3 Erythropoietin stimulates the production of red blood cells. 11. ANS: 1 The first few minutes of a platelet infusion is the critical time when a reaction might occur. Signs of a reaction include back pain, fever, chills, and/or decreased blood pressure. Headache would not require discontinuing the infusion. Vital signs should be monitored, not urine output. The CNA cannot take responsibility for monitoring the patient. Chapter 30: Hematologic Disorders 1. ANS: 1, 2, 5 Blood is redistributed from the skin and intestinal tract to the heart and brain to maintain critical function. The heart and respiratory rates increase to provide additional oxygen to the cells. Erythropoietin production increases to stimulate production of RBCs. 2. ANS: 3 Platelets aid the body in clotting. Ecchymosis and petechiae are signs of bleeding. Patients with low platelets will be a high risk for bleeding. Other choices have nothing to do with clotting. 3. ANS: 2 Pernicious anemia is caused by the inability to absorb adequate vitamin B12 due to lack of intrinsic factor in the stomach. It is treated by prescribing vitamin B12. If the patient has neurological symptoms, a monthly intramuscular injection of vitamin B12 (cyanocobalamin) is needed. Other patients may be prescribed large doses of oral vitamin B12. 4. ANS: 2, 5 For patients with a low red blood cell (RBC) count, it is appropriate to allow rest between periods of activity and provide extra blankets as needed to maintain warmth. Symptoms of a low RBC count that would prompt an RBC transfusion include shortness of breath, tachycardia, decreased blood pressure, chest pain, lightheadedness, and extreme fatigue. Patients may experience orthostatic vital sign changes in pulse and blood pressure when they rise. These patients are dyspneic because they do not have enough RBCs to carry O2 to all their tissues, yet the lungs will sound clear to auscultation without wheezing, crackles, or rhonchi. Rectal temperatures and suppositories do not need to be avoided unless a bleeding disorder is also noted. Fluids and fiber do not need to be increased, and fresh flowers may remain in the room. 5. ANS: 1 Aplastic anemia results from the complete failure of the bone marrow. Signs and symptoms of aplastic anemia can include pallor, extreme fatigue, tachycardia, shortness of breath, hypotension, unusually prolonged or spontaneous bleeding, and frequent infections that do not resolve. In addition to abnormally low red blood cell (RBC), white blood cell (WBC), and platelet counts on blood tests, patients with aplastic anemia have abnormally low numbers of blood-making cells in their bone marrow. With aplastic anemia, the bone marrow does not make adequate amounts of the blood cells; with autoimmune hemolytic anemia, the bone marrow makes adequate amounts of the blood cells, but they are destroyed once they are released into the circulation. Causes of autoimmune hemolytic anemia can include certain infections, drug reactions, and certain cancers. As with aplastic anemia, many times the cause of the hemolytic anemia is never identified. Patients with hemolytic anemia usually have high bilirubin levels in their blood from all the RBCs being lysed (broken down) and a positive result on a direct Coombs antiglobulin blood test. Sickle cell anemia is a genetic disease occurring almost exclusively in African Americans where normally disk-shaped RBCs become sickle shaped. These misshapen blood cells are much more fragile than normal RBCs, so the sickled cells easily rupture as they pass through small capillaries. This leads to a chronic anemia. Iron deficiency anemia is caused by inadequate dietary intake of iron or inadequate absorption of dietary iron. 6. ANS: 3 Symptoms of sickle cell anemia include persistently low red blood cell (RBC) counts, fatigue, and jaundice. Sickle cell crisis occurs when blood flow is obstructed due to abnormally shaped, sickled cells getting stuck in the small capillaries of the body, obstructing blood flow. With circulation obstructed, tissue hypoxia occurs, causing severe pain. Patients in a sickle cell crisis often have a fever, either because infection precipitated the crisis or as part of the inflammatory response to tissue hypoxia. The cells do not lack hemoglobin, nor are the cells unable to transport adequate O2. The lack of O2 is due to the blocked circulation to the tissues. Although O2 therapy is often prescribed, it is of little benefit in reversing the crisis. Sickle cell anemia and crisis are not related to a bone marrow disease. 7. ANS: 1, 2, 4, 5 Factors that can trigger a sickle cell crisis include dehydration, infection, smoking, and cold weather changes. Other factors include excessive alcohol consumption and overexertion. Symptoms vary depending on where the circulation is blocked by the sickled red blood cells (RBCs). Low iron intake is related to iron deficiency anemia and to sickle cell crisis. 8. ANS: 4 The pain with sickle cell crisis can be very severe. The patient needs adequate pain relief during these episodes even if they last for several days. Usually, intravenous morphine is prescribed. Initially, it is not unusual for patients to need large amounts of medication to control their pain. Sometimes patient-controlled analgesia is used. Addiction to opioids can be a problem, so physicians try to quickly transition the patient from intravenous opioids to oral opioids to nonopioid pain relievers such as nonsteroidal anti-inflammatory drugs (NSAIDs) as the crisis resolves. Physical therapy and nerve blocks would not be helpful during a sickle cell crisis. Red blood cell (RBC) transfusions may be prescribed to correct the anemia and help the body oxygenate tissues. 9. ANS: 1 Disseminated intravascular coagulation (DIC) is a hypercoagulable state, meaning that blood clotting is abnormally increased. DIC occurs when overstimulation of the normal coagulation cascade results in simultaneous thrombosis and hemorrhage. DIC is always secondary to another pathologic process, such as overwhelming sepsis, shock, major trauma, crush injuries, burns, cancer, acute tumor lysis syndrome, or obstetric complications such as abruptio placentae or fetal death. Coagulation occurs at so many sites in the body that eventually all available platelets and clotting factors are depleted and uncontrolled hemorrhage results. Both idiopathic thrombocytopenic purpura (ITP) and thrombotic thrombocytopenic purpura (TTP) are examples of thrombocytopenia resulting from too many platelets being either destroyed or consumed. Both of these disorders are abnormal immunologic processes that result in thrombocytopenia. Hemophilia is a genetic disease wherein the affected person lacks some of the blood-clotting factors normally found in plasma. 10. ANS: VIII Patients with hemophilia A need factor VIII, which is found in fresh frozen plasma (FFP) and cryoprecipitate. These patients also need adequate pain relief during these episodes even if they last several days. Chapter 31: Immunologic System Introduction 1. ANS: bacteria Neutrophils fight bacterial infections. They are the most numerous of the white blood cells (WBCs), comprising approximately 60% of all the WBCs. The bone marrow is capable of producing huge numbers of neutrophils to fight infection. 2. ANS: active Acquired antibody immunity can be active or passive. Active acquired immunity occurs when a person synthesizes his or her own antibodies in response to a pathogen. A person develops active acquired immunity when he or she manufactures antibodies in response to an infection or a vaccination. Active acquired immunity is permanent. 3. ANS: 1, 2, 3, 5 With advancing age, the bone marrow becomes less productive and the immune system function is generally not affected under normal circumstances. The lymphatic tissue shrinks, resulting in fewer and smaller lymph nodes. Even if a higher production of blood cells is needed, the bone marrow usually can respond to the increased demand, given more time. However, as with the bone marrow, this does not generally affect the overall health of an individual. 4. ANS: 2 For approximately 2 weeks after transplantation, when the new bone marrow is engrafting, patients are severely neutropenic and at very high risk for infection. 5. ANS: 1 Immunodeficiency occurs when the body is unable to launch an adequate immune response, resulting in an increased risk for infection. Assessing for signs and symptoms of infection is a priority when collecting data on a patient with an immune disorder. Unexplained weight loss, increased blood pressure, and characteristics of urine are important to assess, but signs and symptoms of infection are the most important to determine. 6. ANS: 3 Normal white blood cell (WBC) counts range between 5000 and 10,000 WBCs per cubic millimeter (mm3) of blood. A person’s WBCs can vary by 2000/mm3 of blood on a given day, so a WBC count of 20,000/mm3 is interpreted as the patient having a severe infection. It is too high to interpret as a mild infection or that the infection is resolving. If a person has a low and not high or excessive neutrophil count (as tested in a complete blood count), then it is interpreted as the patient being at increased risk for infection. 7. ANS: 1, 2 Compromised host precautions are needed when a patient’s absolute neutrophil count (ANC) falls below 1000 cells/mm3. Thorough hand washing by visitors and staff caring for these patients is of extreme importance. Because patients with low white blood cell (WBC) counts can become infected with their own microorganisms through their gastrointestinal tract, consider discouraging patients from eating fresh fruits or vegetables and from drinking milk products. Once the patient’s ANC climbs above 1000 cells/mm3, compromised host precautions can be discontinued and a regular diet resumed without restrictions. Staff does not need to wear masks when in the patient’s room, and an isolation room is not needed. Complete vital signs need to be taken every 4, and not 8, hours. 8. ANS: 2 Antigens are foreign substances that stimulate a response from the immune system whereas antibodies are proteins that are produced by the immune system to help eradicate antigens. A phagocyte is a cell that engulfs foreign substances, and a pathogen is an organism that can cause infection. 9. ANS: 3, 4 For an autologous transplant, the patient’s own bone marrow is harvested. The patient is then given chemotherapy and radiation to destroy the diseased tissue. Afterward, the patient’s bone marrow is given back to the patient. Until the patient’s immune system is adequate, he or she will remain hospitalized in a specialized care setting. 10. ANS: 2 An autologous procedure uses the patient’s own stem cells. An allogeneic transplant used stem cells from a matched donor. An syngeneic transplant uses cells from an identical match (identical twin). Chapter 32: Immunologic Disorders 1. ANS: 3 Neutrophils are white blood cells that play a critical role in protecting the body from pathogens. When neutrophils are low (neutropenia), the patient is at greatest risk for infection. 2. ANS: 1, 3, 4, 5 Examples of autoimmune diseases are idiopathic thrombocytopenic purpura (ITP), thrombotic thrombocytopenic purpura (TTP), acute rheumatic fever, type 1 diabetes mellitus, systemic lupus erythematosus, multiple sclerosis, rheumatoid arthritis, Graves disease, and Hashimoto thyroiditis. Hodgkin disease is not an autoimmune disorder. 3. ANS: 2 Because platelets are essential for normal blood coagulation, the patient is at risk for excessive bleeding. The nurse should examine the skin to detect bruising and bleeding. 4. ANS: 1 Epinephrine should be on hand because it reverses the effects of anaphylaxis, raising the blood pressure and relaxing the bronchi. 5. ANS: 3 The most important finding is an elevation in body temperature which suggests an infection. The other findings are typical of a leukemia patient having chemotherapy. 6. ANS: 1 Type I immediate hypersensitivity reactions are mediated by immunoglobulin (Ig) E reacting to common allergens such as dust, pollen, animal dander, insect stings, or various drugs. 7. ANS: 1 During the latent stage, the virus is inactive, resting CD4 host cells. When the resting CD4 host cells are activated for an immune response, the virus begins to replicate. 8. ANS: 2 HIV enters the body by exposure to bodily fluids (e.g., blood, semen, breast milk, vaginal secretions) that contain the virus, not by lifestyle or sexual preference. It is not transmitted by the respiratory tract, contaminated foods, or skin contact. 9. ANS: 2 Infection is the leading cause of death among persons with AIDS because of the reduced CD4 and CD8 cell that would normally allow a person to resist infection. 10. ANS: 4 At this time, no drugs directly destroy HIV. Available drugs primarily work by suppressing the replication of the virus. 11. ANS: 3 A patient with HIV becomes confused. The best comment to give to the patient’s partner is, “The patient’s mental status may improve with drug therapy.” Many patients with HIV-induced encephalopathy improve with zidovudine therapy. Patients with HIV encephalopathy may also have cognitive and motor impairment or withdraw from social activities because of embarrassment. It is important to make sure that the patient is safe. Confusion is not rare and irreversible with HIV and is generally related to HIV. Encephalopathy can occur during the infection and does not necessarily occur just before death. Chapter 33: Cardiovascular System Introduction 1. ANS: 4 African Americans have the highest prevalence of hypertension of all ethnic groups, and African-American women have a higher incidence of hypertension than African-American men. 2. ANS: 2 Transfer of O2 and nutrients between the blood and the tissue cells occurs in the capillaries. Capillaries consist of a single layer of endothelial cells that allow the efficient delivery of nutrients and O2 into the tissues and the removal of metabolic wastes from the tissues. 3. ANS: 3 Older adults are at risk for emboli when the intima layer of blood vessels thickens, hardens, and roughens with age. Anemia is a decrease in number of red blood cells (RBCs) or less than the normal quantity of hemoglobin in the blood and is the most common disorder of the blood. Bradycardia is defined as a heart rate below 60 beats/minute. Hypotension is low blood pressure, especially in the arteries of the systemic circulation, and is generally considered when the systolic blood pressure is less than 90 millimeters of mercury (mm Hg) or diastolic less than 60 mm Hg. 4. ANS: intermittent claudication Intermittent claudication is the term used to describe a patient’s complaint of pain and cramping in the legs that occurs when walking and is relieved by rest. It is associated with decreased perfusion and can affect any major muscle group distal to (beyond) the point of arterial occlusion. When the exercise is stopped, the metabolic demands of the muscle tissue decrease, wastes are removed from the tissues, and the pain is relieved. 5. ANS: 4 Dependent edema develops as a result of systemic disorders, lymphatic dysfunction, deep vein thrombosis (DVT), or chronic venous insufficiency. The severity of edema is determined by the nurse pressing the thumb into the edematous area for approximately 5 seconds. The severity is graded from 1 to 4, depending on the depth of depression: less than ¼ inch (2 mm) = 1; ¼ to ½ inch (4 mm) = 2; ½ to 1 inch (6 mm) = 3; and more than 1 inch (8 mm) = 4. So this patient’s edema is rated as 2+. 1+ edema is less than ¼ inch (2 mm). Pitting edema is defined as when the depression of the thumb remains in the edematous area. Mild edema is too subjective, and the status of the edema needs to be graded objectively. The same area on both extremities should be compared. 6. ANS: 3 Angiography is an invasive procedure that requires the injection of dye into the vascular system, which makes the vessels visible on radiographs. The two types of angiography are (1) arteriography, which examines arteries and (2) venography, which examines veins. Abnormalities can be visualized and assessed during the procedure. Ultrasonography is when Doppler ultrasound is used to help diagnose peripheral vascular disease (PVD) and monitor the changes in blood flow associated with vascular diseases. It is a noninvasive, inexpensive, highly reliable diagnostic tool. Plethysmography is a noninvasive study used to measure blood flow in the extremities. Multiple blood pressure cuffs are applied to different parts of the extremities and variations in pressure from one site to another can show vascular occlusions or obstructions. An exercise treadmill test is also called a stress test. This noninvasive procedure helps evaluate the patient’s tolerance for physical activity. Signed consent is required. The patient is asked to walk for approximately 5 minutes at a rate of 1.5 mph on a treadmill. Continuous electrocardiogram (ECG) and blood pressure monitoring is done. 7. ANS: 1, 2, 4, 5 A specific type of exercise program that is effective in the management of peripheral vascular disease (PVD) is the use of Buerger-Allen exercises or active postural exercises. These exercises allow gravity to fill and empty the blood vessels. Elevating the lower extremities above the level of the heart promotes venous return and reduces venous stasis. Smoking cessation is critical to effective management of PVD because smoking causes vasoconstriction. Elastic stockings or antiembolism hose are useful in the management of PVD. These stockings provide sustained, evenly distributed pressure over the entire surface of the calves and thighs. Thermotherapy (hot or cold) should be used cautiously for patients with PVD. If heat is used, they may suffer burns because their tissues have impaired sensation as a result of tissue ischemia. If cold is used, blood vessels constrict in response to cold. Clothing can replace thermotherapy effectively by promoting warmth and preventing chilling and vasoconstriction. 8. ANS: 1, 2, 3, 4 Dabigatran etexilate (Pradaxa, Pradax) is a direct thrombin inhibitor. It is used to prevent stroke with atrial fibrillation, and in Canada to prevent venous thromboembolism after knee or hip replacement surgery. It does not require regular blood testing and the same dose can be taken every day. It needs to be taken with food to reduce gastrointestinal (GI) distress and is safer than warfarin but can still cause serious bleeding and GI disturbances (nausea and vomiting, abdominal pain, gastroesophageal reflux disease [GERD], gastritis, ulcer). An overdose cannot be reversed because no specific antidote exists. 9. ANS: 3 In patients with peripheral artery disease, prompt reporting of any injury to the feet and legs is very important. The patient also needs to report pain, numbness, coolness, or pale or bluish skin color. Discharge teaching should also include protecting affected limbs from pressure, trauma, and temperature extremes. Elevation of the extremities usually is not recommended with arterial disease. Exercise is encouraged according to the individualized exercise plan, and vasodilator, not vasoconstrictor, drugs are prescribed. 10. ANS: SA node For the heart to pump blood through the chambers, nerves must stimulate muscle contractions. The pattern of conduction follows an orderly and particular route. The SA node initiates the impulse, and is called the pacemaker. 11. ANS: 1 The three factors that affect stroke volume are preload, contractility, and afterload. Contractility is the ability of cardiac muscle fibers to shorten and produce a muscle contraction. Preload is the amount of blood remaining in a ventricle at the end of diastole or the pressure generated at the end of diastole, not the amount of blood remaining in the atria at the end of diastole. Cardiac output is not one of the three factors that affect stroke volume. Afterload is the amount of pressure the ventricles must overcome to eject the blood volume, not the amount of blood remaining in the ventricles at the end of systole. 12. ANS: 3 If the valves thicken and stiffen, they may not close properly. If this happens, the patient may have a murmur. Decreased elasticity of connective tissue in the heart muscle, arterial stiffening, and stretching and dilation of veins do not cause murmurs, nor does an aging heart responding more slowly to increased demands. 13. ANS: yes The normal heart rate is 60 to 100 beats per minute (bpm). A rate of 62 bpm is within normal range. 14. ANS: 4 All antidysrhythmics have the potential to cause additional dysrhythmias. Fluid and electrolyte imbalance, drowsiness, and diarrhea are not adverse effects common to antidysrhythmic drugs. 15. ANS: 3, 5 Cardiac patients should use unsaturated fats (vegetable oil or olive oil) instead of saturated fats (butter or lard). Cardiac patients should include foods containing omega-3 fatty acids (salmon, walnuts, soybeans) and limit sodium intake to 1500 mg/day. They should eat fruits and vegetables and eat no more than 5 to 7 ounces of meat per day. 16. ANS: 2, 4, 5 Vasoconstriction in the extremities raises the blood pressure by increasing peripheral resistance to blood flow. Compensation also occurs through sympathetic nervous system stimulation, which causes catecholamines to be released that increase heart rate; regulation of blood volume by the kidneys (renal compensation); and enlargement of the ventricular myocardium, which results from strain and initially increases contractility. Compensation occurs through the sympathetic nervous system, not the parasympathetic system. When cardiac output falls, so does renal perfusion, so the kidneys do not eliminate excess fluid. As a result of the renal compensatory process, aldosterone causes the kidneys to retain sodium and water, which increases blood volume. Chapter 34: Cardiac Disorders 1. ANS: 1, 2, 4, 5 Risk factors that can be modified include increased serum lipids (serum cholesterol), hypertension (high blood pressure), physical inactivity, and stress. Heredity is a risk factor that cannot be modified. 2. ANS: stable angina Chest pain that radiates to either arm, the jaw, the neck, or the epigastrium is called stable angina (also called chronic angina or exertional angina). 3. ANS: 2 Thrombolytics are administered after a myocardial infarction (MI) to destroy clots that have already formed. Tissue plasminogen activator (t-PA) is an example of a thrombolytic drug. Heparin is an anticoagulant drug, used to prevent formation of new clots. Aspirin is an antiplatelet drug used to decrease platelet aggregation. It prolongs bleeding time, and is used to prevent thromboembolic disorders such as stroke and MI. Lidocaine is an antidysrhythmic drug used for rapid control of ventricular dysrhythmias during MI, cardiac surgery, cardiac catheterization, and digitalis intoxication. Neither heparin, aspirin, nor lidocaine destroys existing clots. 4. ANS: 2 The nurse is correct in telling the patient to inform the physician if there is a weight gain of 3 to 5 pounds in 1 week. The nurse should not advise an immediate vigorous exercise program. Activity should be gradual and should not cause shortness of breath or severe fatigue. The nurse should not advise weighing oneself before going to bed. The patient should weigh himself or herself each morning before breakfast, on the same scale and with the same amount of clothing. The nurse should not advise the patient to expect to continue having shortness of breath, chest pain, and cough. Any of these should be reported to the physician. 5. ANS: rejection of the transplanted heart A heart transplantation patient with symptoms that include elevated temperature, fatigue, shortness of breath, and irregular heartbeat may be rejecting the donated heart because the body recognizes it as foreign tissue. The steroid dose usually is increased to help prevent the body from rejecting the organ. 6. ANS: 1 Mitral stenosis is a narrowing of the opening of the mitral valve, which impedes blood flow from the left atrium to the left ventricle. As the blood flow decreases, the left atrium dilates to accommodate the amount of blood not ejected and left atrial pressure increases. Pulmonary pressure increases, not decreases, as the blood volume backs up into the pulmonary system. Cardiac output decreases, not increases, because less blood is delivered to the left ventricle. Right ventricular pressure increases, not decreases, because the workload on the right side of the heart is increased. Chapter 35: Vascular Disorders 1. ANS: 2 In a postoperative abdominal aneurysm repair patient, it is most important to monitor the patient’s intake and output. During repair of an abdominal aneurysm, the aorta is clamped for a period of time and this can put the patient at risk for renal damage and subsequent renal failure. Fluid intake and urine output are measured hourly at first, then less often if output is satisfactory. Declining urine output must be promptly reported to the physician. Neurologic and cardiac issues are not as important as potential renal damage, so reflexes in the lower extremities, mental status, and electrocardiograms (ECGs) are not as important to monitor as intake and output. 2. ANS: 1 The most serious complication of venous thrombosis is pulmonary embolism, which can be fatal. The possibility of a pulmonary embolus developing during the treatment of venous thrombosis is an ever-present threat. When an embolus lodges in the lung, the affected blood vessels can no longer exchange gases, so pressure builds in vessels behind the embolus. Symptoms of pulmonary embolism depend on the amount of tissue affected. Small emboli may produce no symptoms, but larger emboli can cause dyspnea, chest pain, tachycardia, cough, fever, anxiety, and a change in mental status. A massive embolus can cause heart failure and shock. Sixty percent of people do not survive massive emboli. The goals of treatment are to prevent thrombus extension and pulmonary emboli, to reduce the risk of further thrombus formation, and to reduce discomfort. Stasis dermatitis is a common inflammatory skin disease that occurs on the lower extremities. It is usually the earliest cutaneous sequela of chronic venous insufficiency and may be a precursor to more problematic conditions, such as venous leg ulceration and lipodermatosclerosis, ankle ulceration, and pitting edema. These are not considered serious complications. Chapter 36: Hypertension 1. ANS: 3 Stage 1 hypertension is a blood pressure (BP) reading of 140 to 159 mm Hg systolic or 90 to 99 mm Hg diastolic. Normal BP is less than 120 to 139 mm Hg systolic and less than 80 mm Hg diastolic. High normal is a BP of 120 to 139 mm Hg systolic or 80 to 89 mm Hg diastolic. Stage 2 hypertension is 160 mm Hg systolic or 100 mm Hg diastolic. 2. ANS: unknown Hypertension is classified as primary (essential) or secondary. Primary hypertension accounts for 90% to 95% of all cases of hypertension. The cause for primary hypertension is unknown, although several contributing factors, including increased sodium intake, greater than ideal body weight, diabetes mellitus, and excessive alcohol consumption, have been identified. Secondary hypertension is caused by underlying factors such as kidney disease, certain arterial conditions, some drugs, and, occasionally, pregnancy. 3. ANS: 3, 4, 5 Complications of hypertension, including damage to the heart, blood vessels, kidneys, brain, and eyes, increase after age 50. As blood pressure (BP) rises, so does the risk of heart attack, heart failure (HF), stroke, kidney disease, and blindness. Men, especially African Americans, suffer serious complications more often than women. Cardiac disease is the leading cause of death in hypertensive people. Improved management of hypertension has significantly reduced the death rate from stroke in women age 50 and older. Prolonged hypertension does not increase a person’s risk for glaucoma and damage to heart valves. 4. ANS: 2, 3, 4, 5 The nurse should monitor for hypokalemia in a patient taking hydrochlorothiazide. Side effects of that drug include confusion, irritability, muscle weakness, cardiac dysrhythmias, anorexia, and diminished bowel sounds. Edema is not a side effect of the drug; an action of the drug is to help reduce edema. 5. ANS: 2 Beta-blockers inhibit cardiac stimulation, resulting in decreased heart rate, decreased strength of cardiac contraction, and bronchial constriction. They do not by themselves have any diuretic effects. Calcium antagonists are called calcium channel blockers because they block the movement of calcium into cardiac and vascular smooth muscle cells. This action reduces the heart rate, decreases the force of cardiac contraction, and dilates peripheral blood vessels. Angiotensin-converting enzyme (ACE) inhibitors prevent the conversion of angiotensin I to angiotensin II, a potent vasoconstrictor. Blocking the production of angiotensin II decreases peripheral resistance. ACE inhibitors also decrease fluid retention by decreasing the production of aldosterone. 6. ANS: 4 The patient should be seated comfortably in a chair with his or her feet on the floor. Determine the systolic pressure first by palpating the radial or brachial pulse while inflating the cuff. The pressure when the last pulse is felt is the palpated systolic pressure. Then deflate the cuff and take the pressure by auscultation, being careful to reinflate the cuff above the palpated systolic pressure. The bladder of the cuff should encircle at least 80%, and not 50%, of the circumference of the patient’s arm. A cuff that is too small may give a false high reading, whereas a cuff that is too large may give a false low reading. Position the arm on a surface at the level of and not above the heart. 7. ANS: 1 If a patient taking an antihypertensive drug complains of feeling dizzy when first rising from a supine position, then tell the patient to change positions slowly and exercise the legs before standing. Orthostatic or postural hypotension is a sudden drop in systolic blood pressure (SBP), usually of 20 mm Hg, when going from a lying or sitting position to a standing position. These patients need to exercise their legs and then rise slowly from a lying or sitting position. They should avoid activities that cause blood pressure (BP) to fall, such as prolonged standing in one place and taking very hot baths or showers. They should also be told not to stop taking their medications unless instructed by their physician because suddenly stopping antihypertensive drugs may produce adverse effects, including rebound hypertension (sudden return of elevated BP), myocardial infarction, and cerebrovascular accident (CVA). Feeling dizzy when getting up quickly is a common side effect of antihypertensive drugs, so it is not necessary to tell the patient to go back to bed and call the physician. Increasing salt intake can increase fluid retention and cause an increase in BP. A diet low in saturated fats and sodium may help lower BP. 8. ANS: 1 The most appropriate reply is “BP tends to increase with age, but treatment reduces the risk of complication regardless of your age.” In the past, elevated blood pressure (BP) was considered normal in the older person and was often untreated. With aging, atherosclerotic changes reduce the elasticity of the arteries, causing a decrease in cardiac output (CO) and an increase in peripheral vascular resistance (PVR). A change in dosage or in the medication itself may reduce undesirable effects, but the patient should not make changes unless advised to do so by the physician. Research has shown that older people do benefit from controlling hypertension and that age is no longer considered a barrier to aggressive treatment. The nurse should not lecture to the patient that the physician will be upset if orders are not followed. It is best to explain to the patient the risks of not following the medication schedule and checking with the physician before any changes are made. 9. ANS: 1, 4 The DASH (Dietary Approaches to Stop Hypertension) eating plan is low in fat and red meat. It includes components of lifestyle modifications such as weight reduction, dietary sodium reduction, aerobic physical activity, and moderation of alcohol consumption. Lean meats, poultry, and fish; foods low in saturated fat, total fat, and cholesterol; and fruits, vegetables, and low-fat dairy foods are included. To prevent hypokalemia, the DASH diet has foods rich in potassium, including bananas and orange juice. Chapter 37: Digestive System Introduction 1. ANS: 2 The small intestine is the main area of the gastrointestinal tract for absorption. The small intestine has three separate sections: (1) the duodenum, (2) the jejunum, and (3) the ileum. The majority of nutrient absorption occurs in the duodenum and jejunum. The duodenum absorbs carbohydrates, proteins, and minerals, including calcium, magnesium, iron, chloride, sodium, and zinc. Remaining starches in the form of glucose or proteins passed from the duodenum are absorbed in the jejunum in addition to vitamin C, thiamine, vitamins B2 and B6, and folic acid. The last section of the small intestine, known as the ileum, absorbs amino acids, fat, cholesterol, and fat-soluble vitamins such as vitamins A, D, E, and K. The stomach is the widest section of the digestive tract. The stomach is not very large when empty, but it expands considerably when food is present. It consists of three sections: (1) the fundus, (2) the body, and (3) the pylorus. A unique arrangement of muscle layers allows the stomach to churn the food, mixing it with gastric secretions until it becomes a semiliquid mass called chyme. The major function of the large intestine is to absorb water from the remaining indigestible food matter and transmit the useless waste material from the body. Once contents get to the colon and rectum, there aren’t any nutrients left to be absorbed. Basically, all that’s left to shift (either into or out of the system) is water. 2. ANS: 1, 2, 4 The teeth are mechanically worn down with age. They appear darker and somewhat transparent. The gingiva (gum) tends to recede. Although tooth loss is not a normal effect of aging, about 40% of all Americans ages 65 years and older are edentulous (toothless). The main reasons for tooth loss are caries and periodontal disease. Many older people have complete or partial dentures. The jaw may be affected by osteoarthritis. A significant loss of taste buds occurs with age. The older person may be able to detect sweet better than other tastes. Xerostomia (dry mouth) is common but may be caused more by poor hydration and drug side effects than by aging. 3. ANS: 2 Placement of the tube in the stomach or the duodenum has to be confirmed before administering feedings. Radiographic confirmation is the most reliable method. Various other methods of checking placement have been used. Currently, observation of aspirated material and assessment of pH are thought to be the most reliable. Stomach contents are grassy green, clear and colorless, or brown; they normally have a pH of 5 or less. The intestinal pH is normally 6 or higher. Other measures that are being evaluated are checking the aspirated fluid for enzymes and for bilirubin. Methods that lack scientific support are listening over the stomach area with a stethoscope while injecting air through the tube, placing the end of the tube in water to see if bubbles appear, testing the patient’s ability to speak, and observing for respiratory symptoms. When a patient has continuous feedings, placement is usually checked at least once each shift. 4. ANS: 3 Because the patient has had oral surgery, the nurse must check the health care provider’s orders for mouth care instructions before proceeding. Good nutrition and appropriate mouth care are essential for oral health and wound healing. Just telling the patient that this is normal after oral surgery is not enough. Giving the patient a commercial mouthwash to rinse the mouth is definitely contraindicated. It may contain certain properties that the surgeon does not want the patient exposed to. Suctioning the patient’s mouth after giving sips of water can be damaging to oral tissue that is in the process of healing. 5. ANS: 2, 4, 5 Antisecretory drugs decrease gastric acid secretion, which relieves symptoms and allows the ulcer to begin healing. H2 receptor blockers, proton pump inhibitors, and prostaglandins are examples of antisecretory drugs. H2 receptor blockers, which are the most commonly used antiulcer drugs, include cimetidine (Tagamet), famotidine (Pepcid), ranitidine (Zantac), and nizatidine (Axid). Antacids are not antisecretory drugs and can have serious side effects, and may impair the absorption of many other drugs if taken at the same time. Sucralfate (Carafate) is a mucosal barrier and not an antisecretory drug. Mucosal barriers are used less often now. They work by clinging to the surface of the ulcer and protecting it so that healing can take place. 6. ANS: 3, 2, 4, 1 The assessment should begin with inspection of the abdomen followed by auscultation. Percussion and palpation are done afterwards because they can alter normal bowel sounds. 7. ANS: 2 The portal vein carries blood with absorbed nutrients and other substances from the small intestine to the liver where bacteria and toxins can be removed. 8. ANS: 1, 2, 3, 4 Older adults commonly consume less fluids and fiber than is ideal. In addition, many are somewhat inactive. Last, older persons typically take more drugs than younger adults and many of them can contribute to constipation. Hyperthyroidism is not common among older adults; when present, it is more likely to stimulate bowel activity rather than to slow it down. 9. ANS: 1, 4, 5 Respiratory distress suggests a pneumothorax resulting from accidental puncture of a lung. The supervisor should be notified and vital signs monitored. Reinforcing the dressing would not be helpful. 10. ANS: 2 These symptoms are typical of dumping syndrome which can occur when a feeding is given too quickly. The symptoms occur then hypertonic fluid enters the duodenum drawing fluid into the intestine and causing diarrhea. The loss of fluid from the circulation causes blood pressure to fall resulting in dizziness and weakness. Chapter 38: Upper Digestive Tract Disorders 1. ANS: 2 The small intestine is the main area of the gastrointestinal tract for absorption. The small intestine has three separate sections: (1) the duodenum, (2) the jejunum, and (3) the ileum. The majority of nutrient absorption occurs in the duodenum and jejunum. The duodenum absorbs carbohydrates, proteins, and minerals, including calcium, magnesium, iron, chloride, sodium, and zinc. Remaining starches in the form of glucose or proteins passed from the duodenum are absorbed in the jejunum in addition to vitamin C, thiamine, vitamins B2 and B6, and folic acid. The last section of the small intestine, known as the ileum, absorbs amino acids, fat, cholesterol, and fat-soluble vitamins such as vitamins A, D, E, and K. The stomach is the widest section of the digestive tract. The stomach is not very large when empty, but it expands considerably when food is present. It consists of three sections: (1) the fundus, (2) the body, and (3) the pylorus. A unique arrangement of muscle layers allows the stomach to churn the food, mixing it with gastric secretions until it becomes a semiliquid mass called chyme. The major function of the large intestine is to absorb water from the remaining indigestible food matter and transmit the useless waste material from the body. Once contents get to the colon and rectum, there aren’t any nutrients left to be absorbed. Basically, all that’s left to shift (either into or out of the system) is water. 2. ANS: 1, 2, 4 The teeth are mechanically worn down with age. They appear darker and somewhat transparent. The gingiva (gum) tends to recede. Although tooth loss is not a normal effect of aging, about 40% of all Americans ages 65 years and older are edentulous (toothless). The main reasons for tooth loss are caries and periodontal disease. Many older people have complete or partial dentures. The jaw may be affected by osteoarthritis. A significant loss of taste buds occurs with age. The older person may be able to detect sweet better than other tastes. Xerostomia (dry mouth) is common but may be caused more by poor hydration and drug side effects than by aging. 3. ANS: 2 Placement of the tube in the stomach or the duodenum has to be confirmed before administering feedings. Radiographic confirmation is the most reliable method. Various other methods of checking placement have been used. Currently, observation of aspirated material and assessment of pH are thought to be the most reliable. Stomach contents are grassy green, clear and colorless, or brown; they normally have a pH of 5 or less. The intestinal pH is normally 6 or higher. Other measures that are being evaluated are checking the aspirated fluid for enzymes and for bilirubin. Methods that lack scientific support are listening over the stomach area with a stethoscope while injecting air through the tube, placing the end of the tube in water to see if bubbles appear, testing the patient’s ability to speak, and observing for respiratory symptoms. When a patient has continuous feedings, placement is usually checked at least once each shift. 4. ANS: 3 Because the patient has had oral surgery, the nurse must check the health care provider’s orders for mouth care instructions before proceeding. Good nutrition and appropriate mouth care are essential for oral health and wound healing. Just telling the patient that this is normal after oral surgery is not enough. Giving the patient a commercial mouthwash to rinse the mouth is definitely contraindicated. It may contain certain properties that the surgeon does not want the patient exposed to. Suctioning the patient’s mouth after giving sips of water can be damaging to oral tissue that is in the process of healing. 5. ANS: 1, 2 Included in the care plan for a patient with achalasia is deciding what is the best position for the patient during meals and making sure that clothing is not too restrictive. Also included is elimination of specific foods that could be difficult to swallow. Achalasia is a progressively worsening dysphagia (difficulty swallowing) and is generally caused by failure of the lower esophageal muscles and sphincter to relax during swallowing. The patient does not have to be kept NPO, or bowel sounds specifically auscultated, or strict intake and output maintained. However, the patient’s level of consciousness and alertness needs to be determined so that he or she is able to understand and follow directions regarding swallowing and when to notify the nurse if a problem arises. 6. ANS: 2, 4, 5 Antisecretory drugs decrease gastric acid secretion, which relieves symptoms and allows the ulcer to begin healing. H2 receptor blockers, proton pump inhibitors, and prostaglandins are examples of antisecretory drugs. H2 receptor blockers, which are the most commonly used antiulcer drugs, include cimetidine (Tagamet), famotidine (Pepcid), ranitidine (Zantac), and nizatidine (Axid). Antacids are not antisecretory drugs and can have serious side effects, and may impair the absorption of many other drugs if taken at the same time. Sucralfate (Carafate) is a mucosal barrier and not an antisecretory drug. Mucosal barriers are used less often now. They work by clinging to the surface of the ulcer and protecting it so that healing can take place. 7. ANS: 1 Patients with hiatal hernia should avoid lying flat after eating a meal because this can cause excessive intraabdominal pressure. They should also sleep with their heads elevated 6 to 12 inches. Wooden blocks can be placed under the legs of the head of the bed if a mechanical or electrical bed is not available. Advise the patient to eat small, frequent meals, because large meals increase pressure in the stomach and delay gastric emptying. The patient needs to be encouraged to take the prescribed histamine receptor antagonist medications. 8. ANS: 1 To help prevent dumping syndrome, the patient needs to eat a diet low in carbohydrates and refined sugar, moderate in fat, and moderate to high in protein and eat smaller, more frequent meals rather than three large meals. To avoid dehydration, the patient also needs to drink fluids between meals and not with them, and lie down for about 30 minutes after meals. 9. ANS: 2 Chronic gastritis results in decreased production of acid and intrinsic factor. Intrinsic factor is needed for the absorption of vitamin B12, which is essential for the maturation of red blood cells (RBCs). Without intrinsic factor, a serious condition called pernicious anemia develops. Deficiencies of vitamins A, C, and E are not related to this condition. 10. ANS: true This statement is true. Nursing care of patients being treated for oral cancer should focus on pain, impaired oral communication, and altered body image. Also, inadequate nutrition, potential for infection, and inadequate tissue perfusion are included in the care of a patient with oral cancer. Chapter 39: Lower Digestive Tract Disorders 1. ANS: all correct A diagnosis of appendicitis is based on classic signs and symptoms and a white blood cell (WBC) count of 10,000 to 15,000/mm3. The classic symptom of appendicitis is pain at the McBurney point, which is located midway between the umbilicus and the iliac crest. The patient may also assume a position of hip flexion and be unable to straighten the right leg without pain. The abdomen may be rigid, although this sign is often absent with peritonitis in older patients. 2. ANS: 1 Recurrence is so common that surgery is not usually done unless necessitated by serious complications. Postoperatively, the disease typically reappears at the site of anastomosis within 1 year. Newly affected areas also may appear in other sections of the intestine. Crohn disease can affect any area of the gastrointestinal tract. It is most often treated with a combination of drug therapy. There is no increased risk of surgical complications for Crohn disease. Patients with Crohn disease also are thought to have an increased risk of colon cancer. 3. ANS: 1, 3, 4, 5 Content that needs to be included in a presentation to an ulcerative colitis support group includes stress reduction measures to help control symptoms, avoidance of caffeine and other irritating fluids and foods, regular colon screening because of an increased risk of cancer, and drugs to treat acute attacks and preventing future attacks. After an acute attack has subsided, the drug dosage is gradually reduced. There may also be periods of remission lasting several weeks to several years. The exact cause of ulcerative colitis is unknown. 4. ANS: 3 The initial symptom of appendicitis is usually pain in the epigastric region or around the umbilicus, which then shifts to the right lower quadrant. Signs and symptoms of colorectal cancer depend on the location of the disease. If the cancer is located on the right side of the abdomen, then the patient may have only vague cramping until the disease is advanced. Unexplained anemia, weakness, and fatigue related to blood loss may be the only early symptoms of right-sided colon cancer. The pancreas is a large gland located behind the stomach and next to the duodenum (the first section of the small intestine). Pancreatitis is where the pancreas becomes inflamed and damage occurs when the digestive enzymes are activated before they are secreted into the duodenum and begin attacking the pancreas. Ascites is an accumulation of fluid in the peritoneal cavity most commonly due to cirrhosis, severe liver disease, or metastatic cancer. Diagnosis of the cause is usually with blood tests, an ultrasound scan of the abdomen, and direct removal of the fluid by needle or paracentesis (which may also be therapeutic). Treatment may be with medication (diuretics), paracentesis, or other treatments directed at the cause. 5. ANS: 4 Colorectal cancer, or cancer of the large intestine, is the third most common cancer. People at greater risk for colorectal cancer are those with histories of inflammatory bowel disease (IBD) or family histories of colorectal cancer or multiple intestinal polyps. Cancer of the esophagus is not common, but when it does occur, it has a very poor prognosis. Most esophageal cancers are located in the middle or lower portion of the esophagus. No known cause exists, but predisposing factors are cigarette smoking, excessive alcohol intake, chronic trauma, poor oral hygiene, and eating spicy foods. Cancer of the stomach is diagnosed in more than 21,000 people in the United States each year. The incidence is highest among men, people older than 70 years, and people of lower socioeconomic status. Cancer of the pancreas is very serious. Pancreatic cancer quickly spreads to the duodenum, stomach, spleen, and left adrenal gland. About 42,000 new cases are diagnosed each year in the United States. Only 24% of these people will survive for 1 year; 4% will be alive after 5 years. 6. ANS: 1 With Crohn disease, an inflamed colon typically causes abdominal pain, cramping, rectal bleeding, and diarrhea. Many factors can contribute to constipation. When stool is present in the rectum, the urge to defecate occurs. If the urge is ignored, then stool remains in the rectum longer than usual and becomes dry. It is then more difficult, and sometimes painful, to have a bowel movement. People who frequently ignore the urge to defecate may become chronically constipated. The frequent use of laxatives or enemas also may contribute to chronic constipation. These medications keep the lower digestive tract empty and eventually interfere with the normal pattern of elimination. Constipation alternating with diarrhea may be a symptom of bowel obstruction. Stool consistently oozing from the rectum may a symptom of fecal impaction. 7. ANS: 3 Additional teaching about celiac disease is needed when a patient says, “I really don’t need to restrict my diet of gluten-containing foods as I am not having diarrhea.” Celiac disease is treated by avoiding products that contain gluten (i.e., wheat, barley, oats, rye). In the case of celiac sprue, it is helpful to teach the patient how to eliminate gluten from the diet. Genetic testing cannot diagnose celiac disease, but it can tell you whether celiac disease is a possibility. Testing is recommended for anyone who has a parent, sibling, or child with celiac disease. Lymphoma of the small intestine is a rare type of cancer but may be 30 times more common in people with celiac disease. Today, there are many products that are free of gluten that can be purchased from specialty food stores and supermarkets. 8. ANS: 1, 2, 3 Anticholinergic drugs may be given to decrease spasms in the colon. Patients with diverticulosis need to get an annual colonoscopy to detect any possible changes that may be cancerous. Stool softeners or bulk-forming laxatives are used to treat constipation, and antidiarrheals are prescribed for those who have diarrhea. Other high-fiber foods are dried beans, most vegetables, and fruits. Diverticulosis is currently being treated with a high-residue, high-fiber diet without spicy foods. Whole-grain breads, brown rice, and whole-grain cereals are recommended. 9. ANS: 2 Patients taking immunosuppressants need to avoid contact with people with active infection. Corticosteroids are used in inflammatory bowel disease (IBD) for their ability to reduce inflammation. Unfortunately, this action also decreases the ability of the body to resist infection. Patients on steroids must be monitored for any signs and symptoms of infections. A low-roughage diet without milk products is prescribed for mild to moderate IBD. A low-maintenance dose of the immunosuppressant may be given for as long as 1 year, so discontinuing the drug early may result in another acute attack. Frequently, patients have diarrhea with frequent bloody stools and abdominal cramping. Medications should not be stopped if diarrhea occurs. The patient needs to report this to the physician. 10. ANS: 1, 2, 4, 5 The diet should include high-fiber foods such as fruits, raw vegetables, greens, whole grains, and lean proteins in the diet. Animal proteins and fats should be avoided, along with irritating foods and alcohol. Chapter 40: Liver, Gallbladder, and Pancreatic Disorders 1. ANS: icteric phase The icteric phase is characterized by jaundice, light- or clay-colored stools, and dark urine typical of impaired bile production and secretion. Bile salts accumulate under the skin and can cause pruritus. Gastrointestinal symptoms from the preicteric phase often persist. The icteric phase lasts 2 to 4 weeks. Hepatitis patients who do not develop jaundice are said to have anicteric hepatitis. 2. ANS: 1, 2, 3 Moisturizing lotions protect the skin and can help relieve itching associated with jaundice. The patient should bathe in tepid water, and pat dry. Mild soap is used unless it seems to increase symptoms. Lubricating lotions or topical antipruritics can be applied. Use light strokes in the direction of the heart. Select older, soft sheets. Gently pat the skin instead of scratching to reduce the itching sensation. Vigorous massage can further irritate the skin. If a patient is confused, trim the fingernails as agency policy permits. Mittens may be needed to prevent skin injury. If conservative measures are not effective, consult the physician about ordering an antihistamine. If the event that the patient is having an allergic reaction to antibiotics, contact the physician before continuing the medications. 3. ANS: 2 Health care providers should be vaccinated against hepatitis B because it can be spread through contact with body fluids. Hepatitis A is also called infectious hepatitis and epidemic hepatitis. It is caused by the hepatitis A virus (HAV), which is transmitted from one person to another by way of water, food, or medical equipment that has been contaminated with infected fecal matter. Hepatitis A is the most common type of viral hepatitis. Fortunately, it is rarely fatal and infected persons do not become asymptomatic carriers. Hepatitis C is transmitted by contact with contaminated blood or medical equipment or by contact with infected body fluids. Like hepatitis B, it can be transmitted from an infected mother to her baby during birth; however, that is rare. Whereas some individuals recover completely from acute hepatitis C, a significant proportion of people with hepatitis C develop chronic infections and become carriers. Many of these will develop cirrhosis or cancer of the liver. Hepatitis D is caused by a virus known as the delta agent, which is a defective ribonucleic acid (RNA) virus that can survive only in the company of hepatitis B virus (HBV). Hepatitis D is transmitted percutaneously (through the skin or mucous membranes) with or following HBV infection. The presence of hepatitis D greatly increases the risk that the patient will progress to chronic hepatitis and possible liver failure. 4. ANS: 3 Distended, engorged vessels in the esophagus are called esophageal varices. They are fragile and bleed easily, with the potential for fatal hemorrhage. Circumstances that may trigger bleeding in the esophageal varices and hemorrhoids include irritation and increased intraabdominal pressure. 5. ANS: 4 The most concerning transplant rejection finding is fever. Fever is sometimes the only sign of rejection. Other assessment findings that would alert the nurse are anorexia, depression, vague abdominal pain, muscle aches, and joint pain. Rejection may be treated with corticosteroids or other immunosuppressant medications. If this treatment is unsuccessful, then retransplantation may be needed. Heartburn, constipation, and pale urine are not complaints or signs that might signal transplant rejection. 6. ANS: 2, 3 The common hepatic bile duct joins the cystic duct to form the common bile duct. The cystic duct leads to the gallbladder, a saclike organ beneath the liver. Bile flows from the liver to the gallbladder, where it is stored and concentrated. The duodenum, main pancreatic duct, and ductus arteriosus are not components of the common bile duct. 7. ANS: 1 A T-tube is placed in the common bile duct to maintain bile flow until swelling in the duct subsides. One part of the tubing is brought through the patient’s skin and connected to a closed-gravity drainage receptacle. A T-tube does not relieve pressure on the liver, or divert intestinal contents, or prevent bile from leaking on the abdomen. 8. ANS: 1, 2 The endocrine function of the pancreas is carried out by clusters of specialized cells scattered throughout the pancreas. These cells are called islets of Langerhans. The islets contain alpha, beta, delta, and PP cells. Alpha cells produce and secrete glucagon. Beta cells produce and secrete insulin. Insulin is secreted when the blood glucose rises, as after a meal. It stimulates the use of glucose by the cells so that a normal blood glucose level is maintained. Glucagon is secreted when the blood glucose level falls. It stimulates the liver to convert glycogen into glucose. Pancreatic fluid is part of the exocrine function of the pancreas. This fluid contains enzymes needed for the digestion of proteins, fats, and carbohydrates. It is secreted into the duodenum through the pancreatic duct. The manufacture and storage of bile is not an endocrine function of the pancreas. Bile is produced in the liver, stored in the gallbladder, and delivered to the intestine, where it is essential for emulsification and digestion of fats. When fats enter the duodenum, the gallbladder contracts and delivers bile to the intestine through the common bile duct. 9. ANS: 2 The patient with chronic pancreatitis is likely to need to take pancreatic enzymes to digest food. The enzymes can be taken with meals or snacks. The effect of the enzymes can be determined by examining the stools for steatorrhea: a high-fat content caused by inadequate enzymes. Monitoring daily weights, recording intake and output, and checking for pain relief are not assessments related to pancreatic enzyme tablets. 10. ANS: 1, 4 Among the risk factors for pancreatic cancer are chronic pancreatitis and smoking. Other probable risk factors are a high-fat diet and exposure to certain toxic chemicals. Tumors may develop in the head, body, or tail of the pancreas. Chronic pancreatitis is often related to alcohol abuse, so stress reduction exercises are needed. Nursing care of the patient with pancreatitis addresses anxiety along with pain; fluid volume deficit; potential for infection; inadequate oxygenation; inadequate nutrition; and lack of knowledge. Increased dietary protein is not an intervention needed to reduce one’s risk of pancreatic cancer. Regular exercise is not as important as interventions to relieve stress. Chapter 41: Urologic System Introduction 1. ANS: 1, 4 With aging, bladder muscles weaken and connective tissue increases. The effect is decreased capacity and incomplete emptying. The mechanism that prevents the reflux of urine from the bladder into the ureters is less effective, and this can contribute to kidney infections. Older people often have nocturia and awaken from sleep to void. Decreased renal blood flow, decreased creatinine clearance, and decreased bladder capacity are not age-related factors that contribute to frequent kidney infections. 2. ANS: 4 Dysuria is painful urination. Polyuria refers to a large volume of urine, anuria is the absence of urine output, and hematuria refers to blood in the urine. 3. ANS: 3 Pink-tinged urine is normal the first time a patient voids after a cystoscopy. Because it is an anticipated event, the physician does not have to be notified, additional fluids do not have to be encouraged, nor does blood pressure (BP) have to be taken. 4. ANS: 3 The most common cause of health care–associated infection is catheterization. 5. ANS: 2, 3, 5 Adverse effects of sulfonamides include crystal formation in the urine, sensitivity to sunlight, and risk for Stevens-Johnson syndrome which is characterized by widespread skin lesions. 6. ANS: 1 The capacity of the renal pelvis is only 3 to 5 mL. Chapter 42: Urologic Disorders 1. ANS: 4 Ms. P. is experiencing fluid volume overload as evidenced by shortness of breath, and an increased pulse which is bounding. Other symptoms may include a rising blood pressure and edema. In older adults, a sudden increase in fluid volume may result in heart failure. 2. ANS: 2 Although the pathophysiology associated with urinary tract infection frequency in clients with polycystic kidney disease is not fully understood, it is thought to occur because cysts inside the kidneys may interfere with urine flow, which increases the potential for infection. 3. ANS: 1, 3, 4, 5 Risk factors that have been identified as contributing to renal calculi include having concentrated urine; taking excess amounts of vitamins C or D, animal protein, oxalates, sodium, sucrose, or calcium-based antacids; having a low dietary calcium intake; having a familial history of renal calculi; being sedentary or immobile; having an altered urine pH; and/or a history of hyperparathyroidism, gout, diabetes, obesity, gastric bypass surgery, Crohn disease, or renal tubular acidosis. 4. ANS: 3 Passage of renal calculi can be incredibly painful. The nurse will administer medication to address the pain. Once the pain is under control, the nurse can accomplish other actions such as encouraging fluids, teaching to breathe deeply, and assisting the client to ambulate to facilitate passage. 5. ANS: 2 Hydronephrosis can be caused by an obstruction in urine flow. Renal calculi can block urine flow, creating this condition. 6. ANS: 1 Prevention of thrombi is of key importance following any surgery. Thrombi can cause a pulmonary embolism, which can be fatal. Teaching breathing exercises, encouraging fluid intake, and helping to calm anxiety can take place after thrombi prevention has been accomplished. 7. ANS: 1, 3, 4 Women are more susceptible than men to cystitis, because the female urethra is shorter and closer to the vagina and rectum. They should avoid coffee, tea, and carbonated beverages with caffeine, as well as apple, grapefruit, orange, and tomato juices, because these irritate the bladder. They should drink a glass of water after swimming and before and after intercourse to “flush” the urethra. Women should also wipe from front to back after bowel movements or voiding. Showers instead of tub baths should be taken. Cotton undergarments instead of synthetic should be worn because they keep the perineum drier. Moisture encourages bacterial growth. Tight-fitting clothing in the perineal area should be avoided. 8. ANS: 4 Glomerulonephritis is an immunologic disease characterized by inflammation of the capillary loops in the glomeruli. Several immunologic mechanisms can cause acute glomerulonephritis. For example, the patient may develop antibodies against antigens in the glomeruli. A common type of glomerulonephritis follows an infection of the respiratory tract caused by group A-negative hemolytic streptococcus. Glomerulonephritis is not caused by bacteria, viruses, or urinary obstruction. 9. ANS: 1 Lithotripsy is shattering of renal calculus and is performed by extracorporeal shock wave lithotripsy (ESWL), which uses sound, laser, or dry shock wave energy (electrohydraulic, electromagnetic, piezoelectric) to shatter the stones. The incision of an organ or a duct to remove a calculus is a lithotomy. A nephrolithotomy is the surgical procedure used if a calculus is in the kidney. An ureterolithotomy is removal of a calculus from a ureter. 10. ANS: 5 mL When irrigating a nephrostomy tube, not more than 5 mL of warm, sterile normal saline at a time can be used. 11: ANS: 4 After a nephrectomy, to prevent the risk of renal failure, it is most important to notify the physician if the patient’s urine output is less than 30 mL in an hour. When the patient is able to be weighed, daily weights are an even better measure of fluid balance than intake and output. Blood urea nitrogen (BUN), serum creatinine, serum electrolytes, and urine specific gravity are assessed and compared with preoperative values. Having the patient change position, or drink an 8-ounce glass of water every 2 hours, or increasing the patient’s intravenous flow rate are not as important as contacting the physician. 12: ANS: 2 Elevated serum potassium interferes with normal cardiac function, causing cardiac dysrhythmias. Dysrhythmias are potentially fatal. The patient becomes apathetic and confused and may have nausea, abdominal cramps, muscle weakness, and numbness of the extremities. Many physicians treat the development of peripheral neuropathy as a signal to begin dialysis. The blood urea nitrogen (BUN) test is a general indicator of the kidneys’ ability to excrete urea, an end product of protein metabolism. Signs of metabolic acidosis are headache, lethargy, and delirium. Patients with hypocalcemia experience tingling sensations, muscle twitches, irritability, and tetany, but not confusion. Chapter 43: Musculoskeletal System Introduction 1. ANS: synarthroses Classified on the basis of the extent of movement, joints include synarthroses (fixed joints), amphiarthroses (slightly moveable joints), and diarthroses (freely moveable joints). Synarthrodial joints, such as those in the skull, allow no movement at all. 2. ANS: 2, 3, 4, 5 Age-related changes in connective tissue can significantly affect function, and joint changes are related primarily to the changes in cartilage. Water content decreases and cartilage gradually loses elasticity and then becomes soft and frayed. Friction between unprotected bony joint surfaces promotes the growth of osteophytes (bony spurs). A loss of bone mass and bone strength occurs. Bone tissue softens, it does not harden. Chapter 44: Connective Tissue Disorders 1. ANS: 1 If a patient who has gout reports having flank pain and blood in her urine, the nurse needs to immediately report these signs and symptoms of urinary stones to the physician. This action is taken so that severe attacks can be averted and treatment is begun soon after symptoms develop. When the serum uric acid level is elevated, the excess acid is excreted in the urine, where it may form uric acid stones. Urinary stones can obstruct urine flow from the kidney, leading to renal damage. These complaints are not normal in gout patients, and treatment cannot wait a day or a week to begin. 2. ANS: 1, 2 A continuous passive motion (CPM) machine is a device used after some types of joint replacement surgery. It moves the joints through a set range of motion at a set rate of movements per minute, prevents formation of scar tissue, and promotes flexibility of the new joint. The CPM machine does not lubricate the prosthesis, or restore muscle strength, nor does it test the prosthetic joint. Physical therapy can help to improve range of motion and to maintain muscle mass and strength. 3. ANS: 4 Subluxation (dislocation) of a hip joint prosthesis can occur due to improper position, movement, or activity. Signs of prosthesis dislocation include sudden, severe pain and abnormal position with inability to bear weight on the affected leg. Rejection occurs with transplanted organs and not with prosthesis implants. Wound dehiscence is a surgical complication in which a wound ruptures along a surgical suture. Symptoms of dehiscence can include bleeding, pain, inflammation, fever, or the wound opening spontaneously. The wound is generally located on a highly mobile or high-tension area such as the back, shoulders, or legs. A new hip fracture would not occur on the hip prosthesis side. 4. ANS: 1, 2, 4 A care plan for a patient with rheumatoid arthritis (RA) needs to include impaired mobility related to fatigue; decreased socialization related to physical impairment and poor body image; and pain related to swelling and tenderness. Other pertinent patient problems include inadequate coping related to frustration, embarrassment, and inability to do activities independently; and inability to manage treatment program related to lack of understanding of RA, its treatment, and self-care. Inadequate circulation related to vasoconstriction is related to a cardiovascular problem, and potential for trauma related to loss of bone strength is not related to a patient with RA. 5. ANS: 4 After age 50, women need 1200 mg of calcium daily. Before menopause and while on hormone replacements, women need 1000 mg of calcium daily. Men require 1000 mg every day up to age 71, when it should be increased to 1200 mg per day. Doses of 200 mg and 500 mg of calcium are too low. 6. ANS: 2, 3 Patients taking antigout drugs need to maintain urine output of at least 2000 mL/day to reduce the risk of urinary calculi formation. Also, tell the patient it takes several weeks for the medication to achieve full therapeutic effect. The nurse also needs to assess for allergies and not give the drug with penicillin. Caution is advised with renal impairment. This drug does not have any immunosuppressant effect on patients and has no cardiovascular effect on blood pressure. This drug has no gastrointestinal effects, so patients do not need to remain in an upright position for 30 minutes after taking the medication. 7. ANS: 2 The teaching plan for a patient with systemic scleroderma (SSc) includes remaining upright for 1 to 2 hours after meals. Esophageal reflux with this disease can also be managed with drug therapy; relaxing meals; and avoiding spicy foods, caffeine, and alcohol. When a patient has SSc, the health history should document pain and stiffness in the fingers and intolerance for cold. The home temperature should not be kept below 70 degrees but warmer. To prevent vasospasm, hands need to be kept warm and attempts made to reduce stress and exhaustion. SSc is a chronic (not acute) autoimmune disease of unknown origin that takes its name from the characteristic hardening of the skin and can affect the gastrointestinal tract, lungs, heart, kidneys, muscles, joints, and blood vessels. Death may occur because of infection or cardiac or renal failure. 8. ANS: 2 Sjögren syndrome is an autoimmune inflammatory disease that obstructs secretory ducts in the eyes, mouth, and vagina. An oral moisturizer should be used when caring for a postoperative patient. This syndrome is often seen with rheumatoid arthritis (RA), polymyositis, scleroderma, or systemic lupus erythematosus (SLE). Some classic signs and symptoms include dry eyes, mouth, and vagina. It can affect joints, lungs, liver, nervous system, blood, and kidneys. Other treatments include artificial tears and lubricant ointments; artificial saliva, pilocarpine hydrochloride to stimulate salivary flow, and dental care; vaginal lubricants and perineal hygiene; and glucocorticoids. Lighting does not have to be dim for this patient. This is not a musculoskeletal disorder, so assistance with meals is not needed and hand splints are not used. Chapter 45: Fractures 1. ANS: 4 The patient has a grade II complete open fracture, which is a moderately severe injury with skin and muscle contusions (bruises). A closed or simple fracture is one in which the broken bone does not break through the skin. A grade III incomplete open fracture is the most severe injury (wound larger than 6 to 8 cm), with skin, muscle, blood vessel, and nerve damage. A grade I complete open fracture is the least severe injury, with minimal skin damage. 2. ANS: stage IV The ends of a broken bone begin to knit during stage 4 of healing. There are 5 stages of bone healing. Stage 4 is the ossification stage that occurs 3 weeks to 6 months after the break. A permanent bone callus, known as woven bone, forms, and it is during this stage that the ends of the broken bone begin to knit. 3. ANS: 2 Fat embolism syndrome is suspected. This is most commonly associated with fractures of the long bones, multiple fractures, and severe trauma and occurs 24 to 72 hours after injury. It happens most often in young men ages 20 to 40 years and in older adults ages 70 to 80 years. Older patients with a hip fracture are at highest risk. Respiratory distress is the first sign of a fat embolism, followed by tachycardia, tachypnea, fever, confusion, and decreased level of consciousness. Petechiae, a measles-like rash over the neck, upper arms, chest, or abdomen, can also appear. Shock can occur after a fracture with a large loss of blood. Tissue trauma may rupture local blood vessels, and vascular internal organs may be punctured, with resultant internal bleeding. Besides blood loss, signs of shock include tachycardia, anxiety, pallor, and cool, clammy skin. Avascular necrosis can result when a fracture or bone infection interferes with the blood supply to the bone. Bone cells are deprived of O2 and nutrients, and they die and their cell walls collapse. Signs and symptoms include increasing pain, instability, and decreased function in the affected area. Treatment includes relief of weight bearing and removal of part of the bone to decrease pressure. Some surgical procedures may be needed, and sometimes amputation is necessary. Compartment syndrome is a serious complication that results from internal or external pressure on the affected area. A cast or tight dressing creates external pressure, leading to decreased blood flow to the area. Internal pressure can be caused by edema or bleeding into a compartment. Fluid gets trapped in the compartment and puts pressure on the tissues, nerves, and blood vessels, decreasing blood flow and leading to pain and tissue damage. Compartment syndrome is relatively rare, but a serious condition leading to an emergency situation. Within 4 to 6 hours after the onset of compartment syndrome, irreversible muscle and nerve damage can occur. Paresis (i.e., partial paralysis) can result if the condition is not treated within 24 hours, and within 24 to 48 hours the limb can become useless. Pain is the primary symptom of compartment syndrome, especially pain with touch or movement that cannot be relieved with opioid analgesia. Other signs and symptoms are edema, pallor, weak or unequal pulses, cyanosis, tingling, numbness, and paresthesia. 4. ANS: 2, 3, 5 Methods that can be used to stimulate fracture healing include devices that deliver electrical stimulation and pulsed electromagnetic fields (PEMFs). Electrical stimulation promotes bone healing by promoting bone growth. An electrical current is delivered through a surgically implanted device, a device applied to the skin, or a device that uses pins inserted through the skin. Electrical bone stimulators are successful in approximately 80% of cases, with an average healing time of 16 weeks. PEMFs are noninvasive devices that include a control box and a pad that induces electrical changes around and within the cell. In theory, the electrical changes activate and regenerate a cell, which promotes healing and reduces pain. The implantation of bone grafts (osteogenic methods) is also used to stimulate fracture healing when nonunion of a fracture exists. Traction and fixation do not stimulate fracture healing, but help keep an extremity immobile and in proper alignment. 5. ANS: 1, 2 Patient teaching about a plaster of Paris cast includes not inserting any foreign object inside the cast and reporting to a health care provider any swelling, discoloration of toes or fingers, pain during motion, and burning or tingling under the cast. Other teaching issues include not bearing weight on a new plaster cast for 48 hours (with synthetics, may be less than 1 hour) and not covering the cast with plastic for prolonged periods. A plaster of Paris cast consists of anhydrous calcium sulfate embedded in gauze. It is the least expensive type of cast to use. A well-fitting stockinette is applied and the gauze is immersed in water and wrapped around the affected part. The cast must remain dry, and showers are not allowed. Loss of sensation is not normal and must be reported immediately to the health care provider. The cast dries completely in 48, and not 8, hours. 6. ANS: 4 A crutch is properly fitted when the pad reaches three to four fingerbreadths below the axilla to avoid pressure on the axilla and nerves when walking. Axillary pressure could result in temporary or permanent numbness in the hands. The patient’s statement about being “comfortable” is not accurate for crutch measurement. Hand grips are adjusted so that the elbow is bent no more than 30, and not 45, degrees when the patient is standing in the tripod position. Crutch measurement is not based upon the crutch being 75% of the patient’s height. 7. ANS: 2 The main advantage of surgery over traction for older patients with hip fractures is that surgical repair allows them to move around sooner and results in fewer complications related to immobility. Traction may require 12 to 16 weeks of immobilization for healing. The focus of nursing care for a patient with a fracture is on prevention of complications, pain relief, and restoration to independent function. After total hip replacement, weight bearing can begin almost immediately. Surgery may be more expensive than traction, but the risk of complications is much lower. After a few postoperative days, pain may be less after surgery than traction; it is still not the main advantage of surgery over traction. Bones may heal better with traction, but the prolonged immobility associated with traction puts the patient at greater risk for complications. 8. ANS: 1 Colles fracture is a break in the distal radius (wrist area) that often occurs in older adults, particularly older women, when an outstretched hand is used to break a fall. The major signs and symptoms are pain and swelling in the area of the injury and a characteristic displacement of the bone in which the wrist has the appearance of a dinner fork. The most common complication is impaired circulation in the area resulting from edema. It does not result from jumping from a high place onto a hard surface or from landing in a sitting position after falling. Falling with the leg in a position of outward rotation is not related to Colles fractures. 9. ANS: 3, 4 The best diet for a patient discharged after treatment for a pelvic fracture includes increased protein and calcium to build bone, and supplementary doses of vitamins B, C, and D. Prolonged immobilization, which often is required after multiple fractures, contributes to the loss of calcium and protein. Reduced fat and calories and high-calorie meal supplements would not promote healing. High-calorie meal supplements alone are not recommended, but supplemental feedings that are high in calories, protein, and calcium, such as milkshakes, may be served between meals to promote healing. Because of periods of immobilization, a daily fluid intake of 2000 to 3000 mL is recommended (unless contraindicated) to promote bowel and bladder function. Decreased fluid intake is contraindicated. 10. ANS: crepitus Crepitus is a grating sound heard over an injured arm after a fall. It results from broken bone ends rubbing together. Grating sensations or sounds are felt or heard if the injured part is moved. Chapter 46: Amputations 1. ANS: 2 Vascular disease accounts for the majority of the estimated 185,000 lower extremity amputations performed in the United States each year. In these cases, blood supply to the tissues is inadequate and the tissues become deprived of oxygen (O2) and other important nutrients. Necrosis, or death of the tissue, occurs. Vascular disease can be complicated by infection, because wounds sustained by limbs without a good blood supply do not heal well and gangrene can set in quickly. Trauma tends to be the most common reason for upper extremity amputations. Because these accidents are typically occupational hazards, the victims are usually young men. Amputations also may be performed for bone tumors that are very large and invasive. Treatment may require amputation and disarticulation of an entire limb. Primary bone tumors occur mostly in adolescents but can occur at any age. About one-third of these individuals are 11 to 20 years of age. Congenital defects occur when a limb or part of a limb may be absent or deformed at birth. Congenital amputations may result when the infant is born with a missing, deficient, or abnormal limb. Sometimes surgery is performed to convert a deformed limb into a more functional one that can be fitted with a prosthetic device. 2. ANS: vasoconstriction Smoking is contraindicated after a finger replantation because nicotine causes vasoconstriction. Patients with peripheral vascular disease already have vasoconstricted vessels, so smoking is definitely discouraged. 3. ANS: 4 An accident victim with a crushing injury would most likely have an open amputation. In open amputations, the severed bone or joint is left uncovered by a skin flap. This is required when an actual or potential infection exists from gangrene or trauma. The wound is left open for 5 to 10 days, sometimes longer, and is closed surgically when infection no longer poses a problem. Another term for this procedure is a staged amputation or guillotine amputation. Closed amputations may be performed for bone tumors that are very large and invasive. Treatment may require amputation and disarticulation of an entire limb. Primary bone tumors occur most frequently in adolescents but can occur at any age. Vascular diseases, such as with diabetes, account for the majority of the estimated 185,000 lower extremity closed amputations performed in the United States each year. In these cases, blood supply to the tissues is inadequate and the tissues become deprived of oxygen (O2) and other important nutrients. A child with a congenital deformity may have a limb or part of a limb absent or deformed at birth. These are sometimes called congenital amputations. They result from factors that affect the developing fetus in such a way that the infant is born with a missing, deficient, or abnormal limb. 4. ANS: 2 Complications associated with amputations include hemorrhage and hematoma, necrosis, wound dehiscence, gangrene, edema, contracture, pain, infection, phantom limb sensation, and phantom limb pain. Phantom limb sensation is when a patient experiences sensations (tingling, numbness, itching, warmth/cold) as if the limb were still present. This is caused by stimulation along a nerve pathway in which sensory endings were in the amputated part. Phantom limb pain is when the patient experiences pain as if the limb were still present. It is more common when the patient had pain in the limb before amputation. Poor psychologic adjustment is generally due to inadequate coping skills caused by the overwhelming injury. These patients do not have phantom pain but may be unable to cope due to a lack of education and knowledge about the amputation. Early signs of infection may include fever, foul drainage on the dressing, and excessive redness, warmth, or edema on the residual limb. Denial of the amputation may occur when the patient refuses to look at or talk about the amputation. 5. ANS: 3 Hemorrhage is the greatest danger in the early postoperative period. It can be detected by observations of excessive bleeding or changes in vital signs and behavior. Bleeding into tissue in and around the residual limb because of inadequate hemostasis can be fatal if not corrected immediately. Restlessness and increasing pulse and respiratory rates may be early signs of hemorrhage. Hypotension and cyanosis are late signs. If an immediate prosthesis had been applied, the nurse cannot see the dressing well, so monitoring vital signs is even more critical. Other postoperative complications associated with amputations include hematoma, necrosis, wound dehiscence, gangrene, edema, contracture, pain, infection, phantom limb sensation, and phantom limb pain. Pneumonia would not develop in the early postoperative period. Pain is an important complication but not as life threatening as hemorrhage. Anxiety is generally related to anticipated changes in body image and in function and is normal. 6. ANS: 2 In a closed amputation, a compression dressing with elastic bandages is used, as well as a cast to promote healing and to shrink and shape the residual limb to a tapered, round, smooth end that will fit the prosthesis. This casting is not done to reduce pain or prevent stimulation of nerve endings. It is also not done to prevent contamination. In fact, sometimes the heavy cast or pressure dressing is applied in the operating room to help prevent infection. The nurse needs to inspect the residual limb frequently for irritation and edema. Edema in the residual limb is most common during the first 24 hours postoperatively. 7. ANS: 2, 3 In a patient with an above-the-knee amputation, interventions to prevent contractures of the residual limb include active and passive range-of-motion exercises, which are important to maintain mobility and prevent debilitation, and also having the patient lie supine (if tolerable), with the head turned away from the affected side, for 30 minutes three or four times a day. Avoid prolonged sitting, which can lead to hip and knee contractures, and do not use pillows with lower extremity amputations because they can cause contractures of the hip. Position the patient in a low Fowler rather than high Fowler position and not on the side of the amputation. 8. ANS: 1, 2, 3, 5 Patient teaching related to care of a residual limb and prosthesis includes wearing a clean residual limb sock every day and hand washing, rinsing well, and drying the sock flat. It is also advised to have several socks so the socks can dry between washings. Wash, rinse, and dry the prosthetic socket every day. Wash the residual limb with soap and water every night and dry the skin thoroughly. Lotions, ointments, or powders are used only if prescribed by the physician. Teach the patient to use a mirror each day to inspect the entire residual limb, especially the incision, for irritation, redness, and edema. If redness or irritation is seen, discontinue use of the prosthesis until the area is checked by the health care provider. 9. ANS: 4 When a finger is completely amputated in an out-of-hospital incident, the finger needs to be sealed in a plastic bag and put in ice water. Direct contact between the amputated part and the ice can lead to further tissue damage and cell death. It should not be wrapped in a clean dry, cloth, or especially washed, dried, and wrapped in plastic because those interventions could destroy the integrity of the finger and prevent any chance of replantation. 10. ANS: 3 Signs of venous congestion are cyanosis, rapid capillary refill, edema, and warmth. The limb needs to be assessed for edema, because massive edema often accompanies replantation. Signs of arterial occlusion are pale or blue color, slow capillary refill, shriveled appearance, and coolness. If evidence of inadequate arterial circulation exists (i.e., no pulse, pallor or cyanosis, cool skin), immediately notify the surgeon and prepare the patient for a return to the operating suite. Signs of venous congestion do not necessarily mean rejection of the reimplanted hand. These signs also do not mean that the replantation was successful. In a severely injured hand in which two or more fingers are detached, an attempt is made by the surgeon to restore as many fingers as possible. In general, the greater the muscle mass injury, the less likely that replantation will be successful, or even possible. Chapter 47: Endocrine System Introduction 1. ANS: 3 The overall mission of the endocrine system is to maintain homeostasis. Homeostasis is the maintenance of physiologic stability despite the constant changes that occur in the environment. Hormones are responsible for important functions related to reproduction, fluid and electrolyte balance, host defenses, responses to stress and injury, energy metabolism, and growth and development. Pituitary hormones affect growth, fluid and electrolyte balance, metabolism, ovulation, milk production, uterine contractions, and skin pigmentation. The endocrine system is not primarily involved in the body’s effort to resist infection. 2. ANS: 2, 3, 4, 5 ACTH, GH, LH, and TSH are hormones secreted by the anterior pituitary. Adrenocorticotropic hormone (ACTH) controls the growth, development, and function of the cortex of the adrenal glands; controls release of glucocorticoids and adrenal androgens, necessary for secretion of aldosterone; but does not control rate of aldosterone secretion. Growth hormone (GH), or somatotropic hormone, stimulates the growth and development of bones, muscles, and organs and stimulates the release of insulin-like growth factor 1 (IGF-1) by the liver and other tissues. IGF-1 promotes tissue growth. Luteinizing hormone (LH) controls progesterone production and ovulation or egg release in women and controls testicular growth and testosterone production in men. Thyroid-stimulating hormone (TSH), or thyrotropic hormone, controls the secretory activities of the thyroid gland. Other hormones include follicle-stimulating hormone (FSH), which stimulates the development of the eggs in the ovary and estrogen production in the woman, and sperm production in the man; prolactin, or lactogenic hormone, which stimulates breast milk production in the woman; and melanocyte-stimulating hormone (MSH), which promotes pigmentation. Antidiuretic hormone (ADH) is not a hormone secreted by the anterior pituitary. 3. ANS: 1 ADH stimulates the kidneys to retain water when fluid volume is reduced. If the kidneys do not respond well to ADH, as occurs in older persons, the person is at risk for dehydration. 4. ANS: 2, 3 Only FSH and LH are involved in reproduction. 5. ANS: 2 Catecholamines have multiple physiologic effects, all directed toward adapting to stress. 6. ANS: They bind with adrenergic receptors on the cell membranes of target organs In order to cause responses in specific tissues, these neurotransmitters only interact with adrenergic receptors. 7. ANS: 1, 2, 3, 5 All are correct except option 4. Glucocorticoids cause retention of sodium, not potassium. 8. ANS: radioactive iodine Thyroid tissue takes up iodine. A low dose of radioactive iodine is useful for imaging the thyroid gland. A therapeutic dose of radioactive iodine actually destroys thyroid tissue. 9. ANS: 3 Excessive thyroid hormone replacement will increase the heart rate. Symptoms of inadequate hormone replacement include fatigue and weight gain. A respiratory rate of 14 is normal. 10. ANS: metabolic rate The thyroid gland plays a major role in regulating the body’s rate of metabolism and growth and development. When the metabolic rate falls, the hypothalamus stimulates the pituitary gland to secrete thyroid-stimulating hormone (TSH). This hormone in turn stimulates the thyroid gland to secrete hormones that affect the production and use of energy. Chapter 48: Pituitary and Adrenal Disorders 1. ANS: 3 Responding to a patient with acromegaly who says, “I will be glad to look like myself again,” the nurse should say, “Treatment will keep your symptoms from getting worse but will not reverse them.” Drugs used to treat gigantism and acromegaly decrease hormone secretion but do not reverse the existing skeletal effects of the condition. The statements, “I know you are looking forward to that,” “The process of reversing the effects of acromegaly is very slow,” and “These drugs can slow down the progression of acromegaly, but you will have additional bone enlargement” are all untrue. 2. ANS: 4 When a patient complains of neck stiffness after removal of a pituitary adenoma, the nurse should look for other signs of infection. Minor symptoms, such as a low-grade fever (99.5 F or higher), sore throat, or aches, can indicate the onset of a potentially serious infection. Any symptoms indicative of a cold or other infectious problem should be brought to the attention of the physician. The most common factor in hyperpituitarism is the presence of a pituitary adenoma. An adenoma is a benign tumor composed of epithelial tissue. It may vary in size and invasiveness. Those that are larger than 10 mm are called macroadenomas; those that are smaller than 10 mm are called microadenomas. A neck massage, giving a prescribed analgesic, and lowering the head of the bed are not appropriate interventions. 3. ANS: 1, 3 In hypopituitarism patients for whom childbearing is desirable, follicle-stimulating hormone (FSH) and luteinizing hormone (LH) are the two hormones administered to both men and women. Prolactin and adrenocorticotropic hormone (ACTH) are not needed hormonal replacements for couples with hypopituitarism who desire children. In hypothyroidism, insufficient thyroid hormone is available for normal metabolism and thermogenesis, or heat production. Excess prolactin can cause prolactinemia, characterized by abnormal lactation (galactorrhea), amenorrhea, decreased vaginal lubrication, impotence and decreased libido in men, depression, anxiety, and visual loss. An absence of ACTH affects the person’s ability to cope effectively with stress, which in turn affects the person’s ability to metabolize glucose, and results in hypoglycemia. 4. ANS: 2 The main symptom of syndrome of inappropriate antidiuretic hormone (SIADH) is characterized by a water imbalance related to an increase in antidiuretic hormone (ADH) synthesis, ADH secretion, or both. When ADH is elevated despite normal or low serum osmolality, the kidneys retain excessive water; plasma volume expands and causes the blood pressure to rise. Body sodium is diluted (hyponatremia), and water intoxication develops. The blood glucose level is not increased and there is fluid volume excess without edema. Hypertension, and not hypotension, occurs. 5. ANS: 3 Urine specific gravity has to be measured to regulate drug dosage for a patient with diabetes insipidus (DI). Drug doses for DI do not depend upon daily diet, sodium intake, or blood pressure and pulse, although all of those factors are important to document. 6. ANS: 1, 2 Fluid and electrolyte imbalances associated with Addison disease include hyperkalemia and hyponatremia. Dehydration and not hypervolemia occurs. Metabolic alkalosis is a metabolic condition in which the pH of tissue is elevated beyond the normal range (7.35 to 7.45) due to decreased hydrogen ion concentration. This can lead to increased bicarbonate, or alternatively can be a direct result of increased bicarbonate concentrations. Addison disease is frequently the result of a destructive disease process affecting the adrenal glands that causes deficiencies of cortisol and aldosterone. The most common cause of Addison disease is idiopathic atrophy, an autoimmune disease in which adrenal tissue is destroyed by antibodies formed by the patient’s own immune system. If left untreated, fluid and electrolyte imbalances can lead to circulatory collapse, cardiac dysrhythmias, cardiac arrest, coma, and death. Hypercalcemia is an overabundance of calcium in the blood. Calcium is not an electrolyte. 7. ANS: 1 A confused emergency department patient on drugs for Addison disease with a blood pressure of 88/40 mm Hg; pulse 108 bpm, thready; and dry skin and mucous membranes is diagnosed as having an acute adrenal crisis or addisonian crisis. This usually results from a sudden marked decrease in available adrenal hormones. Precipitating factors are adrenal surgery, pituitary destruction, abrupt withdrawal of steroid therapy (often a result of a patient unwittingly stopping medications), and stress. Examples of stressors include infection, illness, trauma, and emotional or psychiatric disturbances. Other manifestations of an addisonian crisis include more severe symptoms of mineralocorticoid and glucocorticoid deficiency: hyponatremia, hyperkalemia, hypercalcemia, and hypoglycemia. If left untreated, then fluid and electrolyte imbalances can lead to circulatory collapse, cardiac dysrhythmias, cardiac arrest, coma, and death. Cushing syndrome is caused by excessive cortisol levels. Hallmark findings of Cushing syndrome include truncal obesity (excess adipose in body trunk); protein wasting (slender extremities and very thin and friable skin); facial fullness, often called a moon face; purple striae on the abdomen, breasts, buttocks, or thighs; osteoporosis (a significant finding in premenopausal women); and hypokalemia of uncertain cause. Diabetic ketoacidosis (DKA) is a potentially life-threatening complication in patients with diabetes mellitus. It happens mostly in those with type 1 diabetes, but it can occur in those with type 2 diabetes under certain circumstances. DKA results from a shortage of insulin; in response the body switches to burning fatty acids and producing acidic ketone bodies that cause most of the symptoms and complications. Vomiting, dehydration, deep gasping breathing, confusion and, occasionally, coma are typical symptoms. DKA is diagnosed with blood and urine tests. Excessive production of adrenocorticotropic hormone (ACTH) because of a pituitary tumor is called Cushing disease. 8. ANS: 2, 3 Nursing care of the patient with Cushing syndrome includes telling the patient that mood swings and changes in appearance are usually corrected with treatment and to avoid exposure to people with infections because of a decreased resistance to infection. Moisturizers are not specifically ordered to apply to dark, toughened areas of the patient’s skin. Salt should not be used liberally because reducing sodium intake can decrease edema and related weight gain with Cushing syndrome. Chapter 49: Thyroid and Parathyroid Disorders 1. ANS: 1, 2, 4 Levothyroxine should be taken every day, preferably around the same time each day. Patients usually require lifelong treatment. Shortness of breath is not indicative of a thyroid imbalance. 2. ANS: 3 Hypothyroidism usually does not require hospitalization, but it may be detected when patients are hospitalized for other reasons. Because the onset of symptoms is often subtle, the nurse in the community or long-term care setting must be alert for signs and symptoms of hypothyroidism. Cold intolerance is a very uncomfortable effect of hypothyroidism. Provide extra clothing and blankets as needed. An emergency tracheostomy tray or padded side rails are not needed. Also, hyperthyroidism patients are sensitive to light. Hypothyroidism patients are not, so blinds do not have to be closed. Maintain the room temperature at a level comfortable to the patient. A room temperature of 68 F is not mandatory. This is easier to manage if the patient has a private room. Once thyroid replacement is initiated, the cold intolerance gradually improves. 3. ANS: 2, 3, 4 Severe hyperthyroidism includes tachycardia, dysrhythmias, fine tremor of fingers, tongue palpitations, and systolic hypertension. Other symptoms include angina, nervousness and irritability, insomnia, personality change, agitation, inability to concentrate, and hyperreflexia. There is an increased respiratory rate (not a rate of 12 breaths/minute) and dyspnea. Also, body temperature is increased and not decreased (e.g., an oral temp of 96 F). In hypothyroidism, bradycardia is present, the respiratory rate is decreased, and body temperature is decreased. 4. ANS: exophthalmos Exophthalmos is a classic sign of Graves disease. Exophthalmos is caused by fat accumulation, edema, and inflammation of the orbital contents. Tearing, light sensitivity, decreased visual acuity, and swelling around the orbit of the eye occur as well. Graves disease is thought to be an autoimmune disorder triggered by genetic and environmental factors. Antibodies activate thyroid-stimulating hormone (TSH) receptors, which in turn stimulate thyroid enlargement and hormone secretion. Graves disease develops most often in women and, whether treated or not, the condition tends to have periods of remission and exacerbation. Some patients with Graves disease eventually develop hypothyroidism. 5. ANS: 2 The best response to a patient who is taking propylthiouracil (PTU) before a scheduled thyroidectomy is “It reduces your thyroid activity, which makes surgery safer for you.” PTU treats hyperthyroidism by interfering with the synthesis of thyroid hormones. It does not eliminate excess thyroid hormones or replace thyroid hormones after the thyroid gland is removed. It also does not shrink the thyroid gland or reduce pressure on the airway. 6. ANS: 1 The first priority in the immediate postoperative thyroidectomy period is to maintain a patent A (airway), B (breathing), and C (circulation) and the basic emergency interventions for a patient recovering from surgery. Checking for hemorrhage would be the second most important intervention. Monitoring for hypocalcemia and preventing strain on the suture line are important interventions, but not the initial priorities in the postoperative thyroidectomy patient. 7. ANS: 2 It is important to measure serum thyroglobulin in a patient with thyroid cancer because it rises if thyroid cancer recurs. Thyroid replacement therapy is based on the thyroid-stimulating hormone (TSH) level and not the serum thyroglobulin level. Diagnostic studies of the thyroid gland include laboratory blood tests and studies employing radioactive iodine (RAI). Scans using RAI are sometimes ordered at intervals to detect the presence of any remaining cancerous tissue in the thyroid gland. RAI is just another diagnostic test to determine the presence of thyroid cancer. Serum thyroglobulin does not measure parathyroid function. 8. ANS: 1, 2, 5 When the serum calcium level falls, parathyroid hormone (PTH) is secreted. PTH increases the absorption of calcium from the intestines, transfers calcium from the bones to the blood, and signals the kidneys to conserve calcium. In general, calcium retention by the kidney is balanced by phosphate loss. Without PTH, the serum calcium level falls, thus causing tetany. Muscle contractions begin as twitches around the mouth and eyes. The face, fingers, and toes begin to tingle. The patient may have painful “cramps.” The most serious effect of hypocalcemia is spasm of the larynx. As the larynx closes, the patient has difficulty breathing and can suffocate. Cardiac dysrhythmias and seizures also can occur. Tetany is treated with calcium salts given intravenously or orally. The condition usually improves as the injured parathyroid glands recover. Rarely is hypoparathyroidism permanent, so it is not a chronic condition. Increased, and not decreased, serum PTH causes calcium to shift from the bones to the blood. 9. ANS: 3 Muscle cramp in hands and feet 2 days after a parathyroid adenoma has been removed is generally caused by hypocalcemia. Two potential complications specific to parathyroidectomy are (1) airway obstruction and (2) hypocalcemia. A second possible cause of airway obstruction is related to severe hypocalcemia. Poor circulation is not an issue after a parathyroidectomy. Thyrotoxicosis (thyroid storm or crisis) is caused by hyperthyroidism. It is not related to a parathyroidectomy. It is a medical emergency, but modern treatment of hyperthyroidism makes this complication rare. Metabolic acidosis is not related to a parathyroidectomy. 10. ANS: 1 When administering iodide solution to a patient, first dilute it in milk or juice, and then have the patient drink it with a straw. Iodine solutions can cause discoloration of the teeth and gastric upset, so they must be diluted with milk, fruit juice, or some other beverage and sipped through a straw. Iodide solutions inhibit the synthesis of thyroid hormones and are used most often after a course of propylthiouracil to suppress hormone secretion before thyroidectomy. These drugs have no cardiovascular effects, so the patient’s blood pressure and pulse are not required to be taken before each dose. Signs of iodine toxicity include swelling and irritation of the mucous membranes and increased salivation; iodine toxicity has no effect on a patient’s hearing. Although the patient’s intake and output may be recorded, careful monitoring is not necessary. Chapter 50: Diabetes and Hypoglycemia 1. ANS: 2, 4 Insulin is considered a critical hormone for glucose metabolism. Insulin also is needed for the synthesis of fatty acids and proteins. Insulin stimulates the active transport of glucose into the cells. When insulin is absent, glucose cannot enter most cells, so it remains in the bloodstream. Glucose is the source of energy, not insulin. Insulin is the stimulant to bring the energy source to the cells. Insulin transports, but does not metabolize, the glucose for energy. Insulin does not stimulate excretion of excess glucose. It stimulates the transport of glucose to the cells. 2. ANS: 1 The risk of diabetes among Latino Americans is approximately 300% that of Caucasian Americans. Other ethnicities at greater risk of diabetic incidence include those with Alaska Native, Native American, African American, Asian American, and Pacific Islander ethnicity. 3. ANS: 3, 4, 5 Macrovascular complications of diabetes include coronary heart disease (CHD), cerebrovascular accidents (CVAs) or stroke, and peripheral vascular disease (PVD). Retinopathy and end-stage renal disease are microvascular complications. 4. ANS: 3 Autonomic neuropathy related to diabetes affects the sympathetic and parasympathetic nervous systems. Microvascular complications result from changes in small blood vessels that are unique to diabetes and occur in both type 1 and type 2 diabetes. The basement membrane of capillaries thickens, which impairs the exchange of nutrients, gases, and wastes. Tissues that are most vulnerable to microvascular complications are the eyes (retinopathy) and the kidneys (nephropathy). Neuropathy is sometimes classified with microvascular complications. It can affect the pupillary response and functions of the cardiovascular, gastrointestinal, and genitourinary systems. Cardiovascular involvement may be manifested by postural hypotension, resting tachycardia, exercise intolerance, and failure of the heart rate to increase with vigorous exercise. These symptoms are consistent with the data regarding this patient. Macrovascular changes are associated with coronary heart disease (CHD) and chronic hyperglycemia. 5. ANS: 2 Tremors, sweating, nervousness, tingling or numbness of the lips or tongue, tachycardia, and palpitations are all signs and symptoms of low blood pressure, or hypoglycemia. They are not “common symptoms of diabetes,” nor are they “very unusual.” Low levels of glucose in the blood may be corrected, at least temporarily, by ingestion of 4 to 6 ounces of fruit juice, 8 ounces of skim milk, a tablespoon of sugar or honey, or even some Life Saver candies. Medication may need adjustment at some point, but this is not the best response. Treatment needs to be given as soon as possible. 6. ANS: 4 High protein intake indirectly contributes to the development of nephropathy. Nephropathy (kidney disease) can lead to end-stage renal disease (ESRD). An increased level of protein in the urine is an indication that the condition is progressing to ESRD. Limiting protein intake will help to slow or terminate this condition. Ketoacidosis is a deficiency or a complete lack of insulin and can lead to disorders in the metabolism of fats, carbohydrates, and proteins. It is a problem primarily with type 1 diabetes mellitus and occurs when ketone bodies accumulate as the result of the breakdown of fats for energy associated with inadequate insulin. Protein needs are not decreased because excess glucose is meeting metabolic needs, and high protein intake has nothing to do with the absorption of other nutrients. 7. ANS: 2 Insulin was, and still is, obtained from beef and pork; however, most hospitals have switched to human insulin as the standard. A drawback of using beef and pork as the source is that humans may form antibodies against them. Humans do not, however, form antibodies against human insulin. Human insulin is not less expensive. Human insulin does not have a longer duration. Its duration is shorter, but has less risk associated with its use. All types of insulin can cause hypoglycemia if the dose is too much for the patient needs. Intentional or accidental overdose of insulin, a combination of insulin with inadequate food intake, usually increased exercise, decrease in insulin requirement, or potentiating medications are factors that cause hypoglycemia. 8. ANS: 1 Alpha-glucosidase inhibitors are the least likely type of oral diabetes mellitus (DM) medication to cause hypoglycemia. Examples of alpha-glucosidase inhibitors are acarbose (Precose) and miglitol (Glyset). Acarbose and miglitol do not cause hypoglycemia when used alone. If patients with type 2 DM are unable to control their blood glucose with a nutrition program and exercise, the physician may prescribe one or more oral hypoglycemic agents. Other oral hypoglycemic agents include sulfonylureas, biguanides, thiazolidinediones, meglitinides, and d-phenylalanines, dipeptidyl peptidase-4 (DPP-4) inhibitors, and sodium-glucose co-transporter-2 inhibitors. Conversely, a significant adverse effect of the sulfonylureas is the risk of hypoglycemia. With meglitinide and d-phenylalanine drugs, hypoglycemia may occur with strenuous exercise or alcohol consumption. 9. ANS: 1, 3, 4 Polyphagia, polydipsia, and polyuria, known as the three Ps, are classic signs of diabetes mellitus (DM). Polyhidrosis (excessive or profuse sweating) and polycythemia (a blood disease) are not signs and symptoms of DM. 10. ANS: 4 People with diabetes are at increased risk for heart disease, renal disease, blindness, amputation, and complications during pregnancy. Fortunately, with early diagnosis and better management, it is possible to reduce the risk of serious complications. Reassuring the patient that there are ways to help prevent serious complications is the most appropriate reply. Telling the patient not to think about it can increase anxiety and does not provide the patient with needed education about the disease. To indicate that most people with diabetes have to have amputations is inaccurate information, and will also increase the patient’s anxiety level. To attempt to intimidate the patient into following the physician’s order blindly is cruel and incorrect, and will also increase the patient’s anxiety. Chapter 51: Female Reproductive System Introduction 1. ANS: 3 Fertilization, the union of sperm and ovum, takes place in the fallopian tubes. There are two fallopian tubes. They are thin, hollow, cilia-lined, tubular structures that extend from the uterine fundus. The fallopian tubes have funnel-shaped ends that partially surround the ovaries and that receive the ovum from the ovary. The fallopian tubes serve as passages for ova from the ovaries and for sperm that travel through the vagina and into the tubes. Fertilization does not occur in the uterus, ovary, or vagina. 2. ANS: 1 When collecting data about a patient’s menarche, the question to ask is “At what age did you begin menstruating?” Menarche is the first menstrual cycle, or first menstrual bleeding, in female humans. Age at menarche, if 11 years or younger, is an established risk factor for breast cancer. Age at menarche is not related to the patient’s menstrual flow, age when first experienced a “hot flush,” or mood changes before menstrual periods. 3. ANS: 1, 4 Appropriate statements before a culdoscopy include “You will need to be in a knee-chest or lithotomy position.” This position can be physically uncomfortable, embarrassing, and humiliating, so assure the patient that she will be draped throughout the procedure. When completed, help the patient get out of the knee-chest position without exposure. Another appropriate statement is, “You may have shoulder pain caused by air entering the pelvic cavity.” Shoulder pain with this procedure is a common complaint. After the procedure, restrictions include nothing inserted in the vagina (e.g., no vaginal intercourse, douching, or tampons) for the period of time the physician specifies. There are not sutures to remove. A small incision in the posterior vagina is made but will close and heal without sutures. General anesthesia is not given. The procedure is usually performed with light sedation and local anesthetic on an outpatient basis. 4. ANS: 1, 2, 5 When teaching a class on breast self-examination (BSE), the primary role of the nurse is to instruct the class in BSE and to encourage scheduled professional examinations. BSE is not a substitute for periodic professional breast examinations. The BSE should be done at the same time each month and at the end of the menstrual period for menstruating women or on the same date each month for women who have ceased menstruating. Bilateral axillae need to be palpated with each arm only slightly (not fully) raised. Older women should do a BSE on the same date each month and not every day. The American Cancer Society recommends that mammograms be obtained in women at the age of 40 years and subsequent testing should be done annually thereafter and continued as long as they are otherwise in good health (ACS, 2013). In 2009, the U.S. Preventive Services Task Force issued new recommendations that mammography should begin at age 50. Mammograms are not done only if a lump has been discovered. 5. ANS: 1 The nurse’s best advice to a patient about douching is “Your body has normal processes to cleanse the vagina, so douching is not necessary.” It does not need to be done unless ordered by a physician or nurse practitioner. Douching is not harmless but potentially dangerous, because it may force tissue and microorganisms up into the uterus. In addition, cleansing and perfumed agents may cause allergic or irritant reactions. Contrary to common belief, douching is not an effective contraceptive practice. The vagina is not a sterile area, so sterile solution is not used. 6. ANS: 2 The Papanicolaou test uses scrapings from the cervix to assess for abnormal cells including cancer. 7. ANS: 1, 2, 3, 5 The collection of vaginal specimens is done by the physician or nurse practitioner. The other activities are appropriate for the LVN/LPN. 8. ANS: 2 By definition, gravidity is the total number of pregnancies, regardless of the outcome. 9. ANS: 1 Both Plan B and ella are emergency contraceptives that are taken after unprotected intercourse when pregnancy is not desired. 10. ANS: 3 Recommendations made by the American Cancer Society and by the U.S. Task Force on Prevention vary somewhat. Decisions are based on the individual patient situation, so the patient should discuss the mammogram schedule with her primary care provider. Chapter 52: Female Reproductive Disorders 1. ANS: 3 New vaccines, Gardasil, Gardasil 9, and Cervarix, are available to protect against HPV infection and therefore dramatically reduce cervical cancer. 2. ANS: 2, 3, 4, 5 All are correct except option 1 as it is important to encourage frequent and progressive exercise of the arm on the affected side. 3. ANS: 4 Breast cancer is the most prevalent form of cancer in American women; the current prediction is that 1 in every 8 or 9 women will develop breast cancer at some point in her life. 4. ANS: 3 Infertility may be a sign of endometriosis when adhesions affect uterine position or fallopian tube patency, movement, or both because bleeding by endometrial tissue causes local inflammation and pain wherever the site of implantation may be located. The number of implants gradually increases, creating multiple sites of inflammation and pain. In response to the inflammation, fibrous tissue that results in scarring and adhesions forms. 5. ANS: 2 Yeast infections often are associated with disruption of the normal vaginal flora by antibiotic therapy. 6. ANS: 4 Escherichia coli is not associated with pelvic inflammatory disease (PID). Neisseria gonorrhoeae, Chlamydia trachomatis, and Mycoplasma hominis are recognized as the organisms most associated with PID. Chlamydia infection is thought to be the most commonly occurring sexually transmitted infection and the one most often responsible for PID. As such, it is often implicated in infection of the fallopian tubes (salpingitis) and is considered to be the primary cause of ectopic pregnancy and infertility associated with tubal obstruction. 7. ANS: 3 If a patient has been taking danazol (Danocrine) for 6 months and wants to get pregnant, she needs to wait 1 month because danazol can cause birth defects. Danazol is a synthetic androgenic steroid that inhibits gonadotropin excretion, resulting in amenorrhea and atrophy of intrauterine and ectopic endometrial tissue. It is also contraindicated during pregnancy, so the patient should know to use a barrier contraceptive during and for 1 to 3 months after the first normal menstrual period after therapy. The patient will not begin menstrual bleeding within 1 week after stopping the drug. She should not get pregnant in the first month after stopping the drug because of the risk of birth defects. She may try to get pregnant after 3 months of stopping the drug; she does not have to wait 1 year. 8. ANS: 4 After placement of a pessary, advise the patient to return within 24 hours for the physician to assess placement, effectiveness, and problems related to pressure on surrounding structures. A pessary is a device that is inserted into the vagina to apply pressure on the vaginal wall, thereby supporting the uterus in the pelvis. For women who are poor surgical risks or who refuse surgical treatment, pessaries are an option but they do not correct the uterine prolapse. Pessaries must be removed, cleaned, and replaced periodically. Although some primary health care providers prefer to remove, clean, and replace pessaries, capable patients can be taught to do this themselves. If they are not maintained or are fitted improperly, then they may act as irritants and cause tissue erosion, malignant tissue changes, or both. The patient’s pessary must be documented so that it will not be forgotten and neglected. 9. ANS: 1 Characteristic breast cancer lumps are usually singular and unilateral (affecting only one breast), and they can be found in any part of the breast. However, nearly one-half of all malignant breast tumors are located in the upper outer quadrant, and nearly one-fourth are located in the nipple-areolar complex. Most malignant lumps are painless and are palpated as firm, irregularly shaped, and fixed to underlying structures or skin. Fibrocystic breast changes are an exaggerated response to hormonal influences. Excess fibrous tissue develops, accompanied by overgrowth of the lining of the mammary ducts, proliferation of mammary ducts, and the formation of cysts. Fibrocystic nodules do not “become cancerous,” but their presence may make it more difficult to detect malignant tumors by palpation. They are firm, painful lumps that usually affect both breasts. Smooth round lumps that are freely moveable may be felt. Sometimes milky yellow or green discharge from the nipple is seen. Symptoms commonly are most apparent during the premenstrual phase of the menstrual cycle and typically improve after the menstrual period. 10. ANS: 3 The risk for cervical cancer is increased in women who had their initial sexual intercourse in early adolescence, or have been infected with the human papillomavirus (HPV), or human immunodeficiency virus (HIV). Additional factors associated with cervical cancer are cigarette smoking, a compromised immune system, and multiple sexual partners. Cervical cancer was formerly thought to be linked to sexual intercourse with uncircumcised males, but current research does not support this speculation. Age at menarche, if 11 years or younger, is an established risk factor for breast cancer. Uterine prolapse and fibroid tumors are not related to the risk factors for cervical cancer. Chapter 53: Male Reproductive System Introduction 1. ANS: 2 Testosterone is the hormone responsible for male sexual development. Secretion of this male hormone results in the development of other male reproductive organs and causes the testes to descend into the scrotum during the last 2 months of gestation. Luteinizing hormone (LH) is secreted by the anterior pituitary gland and causes stimulation of special cells (i.e., Leydig cells) in the testes to produce testosterone. Gonadotropins are hormones secreted by the endocrine system directly into the blood that regulate reproduction. Progesterone is one of the female hormones secreted by the ovaries along with estrogens, androgens, and relaxin. 2. ANS: 1, 2, 4 Normal aging in the healthy male includes rapidly decreased testosterone production after the age of 50, slower to arousal, and a longer refractory period between erections. This phenomenon has been called the male climacteric and may be associated with symptoms of hot flushes, feelings of suffocation, and psychologic disorders similar to those of menopause. These symptoms may be relieved by the administration of testosterone and other androgens. In a healthy man, there is no lack of interest in sexual activity, and spermatogenesis and the ability to have erections can last a lifetime. 3. ANS: 4 Normally, the testes descend into the scrotum within the last 2 months of gestation. Part of the male newborn assessment is palpation to determine whether the testes have descended. 4. ANS: 2 Cryptorchidism refers to testes that have not descended into the scrotum. Failure to descend may result in sterility, even if corrected surgically. 5. ANS: 1 Hot flashes may occur as a result of blocking androgen receptors. 6. ANS: 4 With aging, the normal decline in testosterone production may result in hot flashes and feelings of suffocation, much like that experienced in the female menopause. 7. ANS: 1 Many blood pressure medications can affect the sexual response. Men on antihypertensive drugs who experience ED should discuss other options for BP management with their primary care provider. In a healthy man, the ability to have erections last a lifetime. 8. ANS: 2 The patient should abstain from sexual activity for 2 to 3 days before collecting the specimen in a clean container. Rubber condoms should not be used because they often have powder or lubricants that may kill the sperm. The specimen should be kept a room temperature and delivered to the lab within an hour. 9. ANS: 4 The risks of testosterone use when not medically indicated are contraindicated because of the potential for serious adverse effects including stroke and myocardial infarction. 10. ANS: 4 Thrombosis resulting in stroke, myocardial infarction, and death is the most serious adverse effect of testosterone therapy. 11. ANS: 1, 2, 3 Nitroglycerin in combination with sildenafil can cause hypotension that may be fatal. There is no evidence of benefit to females. Headache, dizziness, and flushing may occur. Sexual stimulation is required to achieve an erection. Sildenafil should be taken about an hour before anticipated sexual activity. Chapter 54: Male Reproductive Disorders 1. ANS: 4 Many older adults are taking drug for hypertension. These drugs may interact with sildenafil to cause hypotension. The patient should be advised to discuss the use of sildenafil with his health care provider to see if the combination is safe. 2. ANS: 1, 2, 4, 5 Some drugs can cause ED. The patient should discuss his options with his health care provider. Measures that may improve sexual function include physical conditioning, management of stress and anxiety, and ideal weight. Alcohol may contribute to hypotension so is not recommended. 3. ANS: 2, 4 Patient teaching about benign prostatic hypertrophy (BPH) includes having the patient void promptly when he gets the urge and explaining that medications that have antihistamines can cause urinary retention. Other obstructive symptoms include decreasing the size and force of the urinary stream and postvoid dribbling. Irritative symptoms include urgency, frequency, dysuria, nocturia, hematuria, and sometimes urge incontinence. Other factors that may trigger retention are alcohol, infections, delayed voiding, bed rest, opioids, and chilling. Avoiding caffeine and alcohol, maintaining fluid intake of 1500 to 2000 mL/day, and restricting fluids for 2 hours before bedtime can help prevent urinary retention. Fluid restriction is not recommended because it increases the risk of urinary tract infection (UTI). Prolonged exposure to warm temperatures does not promote bladder spasms. 4. ANS: 3 Urine characteristics must be assessed after a transurethral prostatectomy (TURP) to detect any evidence of bleeding. During a TURP, an instrument is inserted into the urethra and an electrode or laser is used to cut away or destroy obstructing portions of the prostate gland. There is no external incision and so no abdominal dressing or perineal drainage. There is not a suprapubic drain because this is a transurethral and not a suprapubic prostatectomy. With a TURP, a triple-lumen urinary catheter is used to maintain continuous irrigation and bladder drainage. Continuous irrigation is intended to clear the bladder of blood and debris. If the catheter output is less than the irrigating fluid delivered, then the catheter may be obstructed and so manual irrigation may be needed as ordered to clear the clots and restore drainage. 5. ANS: 4 Finasteride (Proscar) reduces prostate size, which decreases urethral obstruction. The effects are not evident for several months. Tamsulosin (Flomax) relaxes smooth muscle in bladder neck, prostate capsule, and prostatic urethra, which reduces urethral obstruction. Flutamide (Eulexin) decreases testosterone levels and is used with luteinizing hormone–releasing hormone (LHRH) to treat prostate cancer. Oxybutynin chloride (Ditropan) is an antispasmodic drug often used for pain after prostatectomy and is used to relieve bladder spasms. 6. ANS: 1 Sterile normal saline is isotonic and not hypotonic like water. Hypotonic solutions can cause cell damage when you irrigate a body cavity (or wound). It is not less expensive but will not cause tissue damage. Isotonic solutions are not absorbed into the bloodstream because their tonicity or pH is the same as the blood. Sterile water has no irritating properties that would make the skin sting. 7. ANS: 3 Mumps may result in male infertility. Mumps can cause acute orchitis and epididymitis, accompanied by fever and debilitating pain, bilateral swelling, and redness of the testicles. If damage to seminiferous epithelium occurs, then the size of the testes will be reduced. Measles, chickenpox, and diphtheria are not related to male infertility. Other infections such as tuberculosis, pneumonia, and syphilis may affect the testes, but less dramatically than mumps. 8. ANS: 4 Cryptorchidism, or failure of the testicles to descend from the abdomen into the cooler scrotum, may result in sterility. Cryptorchidism must be corrected within the first 18 months of life to give the best chance for fertility. Men with undescended testes have a 10 to 30 times higher incidence of testicular cancer than men whose testes descended normally. Incomplete or partial descent of the testicles may be resolved by surgical assistance before maturity, but if fetal testes are abnormally formed and do not secrete enough testosterone to cause the testicles to descend into the scrotum, then surgical intervention is unlikely to be successful. Testicular torsion occurs when the spermatic cord twists, cutting off the blood supply to a testicle, and most commonly occurs in adolescents. A varicocele is a lengthening and enlargement of the scrotal portion of the venous system that drains the testicle and is caused by incompetent or absent valves in the spermatic venous system. Most often, only the left testicle is affected. They are most frequently diagnosed when a patient is 15 to 30 years of age, and rarely develop after the age of 40. They occur in 15% to 20% of all males. Untreated bilateral cryptorchidism results in sterility but not chronic infections. 9. ANS: 4 Patient teaching related to vasectomy includes an analysis of the semen to determine if a complete absence of sperm exists. Vasectomy is the surgical removal or tying of a portion of the vasa deferentia for sterilization purposes. The patient is not sterile immediately after the procedure. Intercourse can be resumed as soon as he feels comfortable, but it is important that the patient use other methods of birth control until a determination that sperm no longer exist is made. The patient can expect the analysis to be done after about 15 ejaculations after the vasectomy. Although a vasectomy can sometimes be successfully reversed, it should be considered permanent. The reversal procedure, in which the severed ends of the vas deferens are anastomosed (surgically joined), is called a vasovasectomy. Erection, ejaculation, and intercourse are unaffected. 10. ANS: 1 Serum prostate specific antigen (PSA) increases with prostate cancer, but also with a variety of other conditions. PSA is the most useful tool for the follow-up of patients who have undergone treatment for prostate cancer. Persistent or rising PSA levels indicate advancing or recurrent tumor growth. Periodic biopsies of perineal tissue are not necessary, and studies of urine flow would not lend any reliable data about the status of the cancer. The diagnosis of prostate cancer may be based on rectal examination, transrectal ultrasound, PSA level, and needle aspiration and biopsy. Additional procedures may be done to identify the stage of the disease but not the effectiveness of treatment. These include radiographs, radionuclide imaging, bone scans, excretory urography, transurethral ultrasound, computed tomography, and magnetic resonance imaging. Chapter 55: Sexually Transmitted Infections 1. ANS: 3 The purpose of reporting sexually transmitted infections (STIs) is to reduce transmission of the infection by treating all infected persons. STIs include a number of conditions that can be transmitted from one person to another during intimate contact. The term sexually transmitted disease (STD) is commonly used to describe these same conditions as well. The difference in the two terms is that a disease, by definition, has recognizable signs and symptoms, whereas infections may or may not manifest specific signs and symptoms. Worldwide, the incidence of STIs increases every year. Some states only report the incidence but not individual people’s names. Other states confirm cases of STDs and a current list is posted yearly at www.cdc.gov/ncphi/disss/nndss/casedef/. An investigator asks the patient to name sexual contacts. Sexual contacts are notified and advised that they have been exposed to the disease and are encouraged to seek medical evaluation. The purpose of this process is to identify and treat infected individuals so that transmission of the infection can be slowed. Another approach is to provide the patient with a prescription or additional drugs for his or her sexual partner without examination of the partner. This approach, which is legal in some but not all states, is called expedited partner therapy (EPT). Individuals are not prosecuted for transmitting the disease to others. Reporting STIs is not related to emphasizing to infected persons the importance of practicing safe sex. That intervention is done by health care providers. Reporting does not reduce transmission of the infection by treating all infected persons nor teach the general public about measures to prevent STIs. 2. ANS: 2, 3 Newborns of women with gonorrhea or chlamydial infection may acquire eye infections during birth. Erythromycin ophthalmic ointment is ordered for the newborn of a mother who has chlamydia or gonorrhea. Chlamydial infection is thought to be the most common bacterial sexually transmitted infection (STI) in the United States, and symptoms are similar to those of gonorrhea. Chlamydia is an intracellular bacterium that comprises multiple genera and species. This infection is transmitted by contact with the mucous membranes in the mouth, eyes, urethra, vagina, or rectum. Newborns of infected women may have eye infections (infant inclusion conjunctivitis) or infant pneumonia. Gonorrhea is transmitted most often through direct sexual contact, but some cases have been reported of transmission to newborn infants by infected mothers and to medical personnel with skin lacerations who have come in contact with infected fluids. Syphilis is passed through the placenta, thus causing an infant to be born with the disease (i.e., congenital syphilis). Condylomata acuminata, or genital warts, are caused by the human papillomavirus (HPV) and have a high rate of recurrence despite drug therapy, cryotherapy, cautery, and surgical or laser excision. For unknown reasons, pregnancy can stimulate venereal warts to grow very large. Transmission of the virus is by vaginal, anal, or genital contact with an infected person. If a woman has genital warts, which are caused by HPV, the warts may appear on the outside of the vagina and/or on the inner walls of the vagina and on the cervix. Genital warts don’t interfere with a woman’s ability to get pregnant. However, during pregnancy, warts may get larger and/or may bleed, possibly due to increasing levels of estrogen. Warts along the vaginal wall might make the vagina less flexible and elastic during delivery. It may not be advisable to have the warts removed at this point because of the unknown possibility of birth defects caused by the substances used to remove them. Instead, cesarean delivery might sometimes be recommended when there is a possibility of warts being present toward the end of a woman’s pregnancy. It is believed to be unlikely for a child to be born with HPV. There have been some cases where women with HPV in their vaginal canals during birth have passed the virus on to their babies in the form of laryngeal papilloma, which affects their throat, but this is quite rare. In cases in which this occurs, surgery on the infant is sometimes necessary to remove airway blockages, but again, this is rare. Transmission of hepatitis B virus results from exposure to infectious blood or body fluids containing blood. It can be vertically transmitted from mother to child (MTCT) during childbirth. Without intervention with antiviral drugs, a mother who is positive for hepatitis B surface antigen (HBsAg) confers a 20% risk of passing the infection to her offspring at the time of birth. This risk is as high as 90% if the mother is also positive for hepatitis B e antigen (HBeAg). Only 5% of newborns that acquire the infection from their mother at birth will clear the infection. Nucleoside reverse transcriptase inhibitors (NRTIs) are given to treat this infection. An infected woman who becomes pregnant has a greatly increased risk of fetal infection, deformities, or death. Syphilis can be passed through the placenta, thus causing an infant to be born with the disease (i.e., congenital syphilis). The treatment of choice for syphilis is parenteral penicillin G unless contraindicated. For an infection of less than 1 year’s duration, a single dose is usually sufficient. For infections of 1 year’s duration or longer, a longer course of therapy is indicated. Newborns with congenital syphilis are not treated with erythromycin ophthalmic ointment. 3. ANS: 1 The nurse should respond, “Without treatment, the bacteria remain in your body and you remain highly infectious.” It is essential for the patient to complete the prescribed course of antibiotics and return so that the physician can determine whether the treatment was effective. Telling the patient, “As long as your symptoms have cleared up, no reason exists to treat you now,” is incorrect. Symptoms generally disappear after a few weeks, but if the infection is untreated, then the bacteria remain in the body and the person remains highly infectious. Also, responding to the patient, “If you have symptoms in the future, then come to the clinic immediately,” does not emphasize that the patient has to be cleared of this course of the disease. The response, “Fortunately, gonorrhea has no serious complications, but I must advise you to seek treatment anyway,” is also incorrect. If untreated, gonorrhea can cause sterility in both genders and infections that may lead to damage to heart tissue and joints. Men may develop epididymitis and prostatitis. Women may develop pelvic inflammatory disease (PID). People with gonorrhea are at increased risk for human immunodeficiency virus (HIV); people with HIV and gonorrhea are more likely to transmit HIV to another person. 4. ANS: 2 The primary stage of syphilis involves a typical lesion, called a chancre, that is the first sign of syphilis. The chancre is a reddish papule-like lesion that appears where the organism entered the body, usually on the genitals, anus, or mouth. Within 1 week, the papule becomes a painless red ulcer. Lymph nodes in the area of the chancre may be enlarged but are not tender. The chancre is generally first noticed 1 to 12 weeks after contact. During the primary stage, the chancre may last from 1 to 5 weeks. When it disappears, patients may assume they are cured when, in fact, the infecting organism has moved into the blood. Signs and symptoms change throughout the course of the disease. If untreated, syphilis progresses through four stages: (1) primary, (2) secondary, (3) latent, and (4) late. The secondary stage involves a rash on the extremities, chest or back, palms of the hands, and soles of the feet. Pustules that contain highly contagious material often develop. The patient is contagious during the first and second stages. Lymph nodes in the area of the skin lesion can be enlarged but they are not tender. Fever, sore throat, and generalized aching are also seen in the secondary stage. 5. ANS: 1, 2, 3, 4 The patient with untreated syphilis may develop severe, potentially fatal complications, including neurosyphilis (meningitis, blindness, paralysis), and cardiovascular disease. Osteoporosis is not related to patients with untreated syphilis. 6. ANS: 1, 2, 3 The modes of transmission of both types 1 and 2 herpes simplex virus (HSV) are the same, and both types can be treated with antiviral drugs. Type 1 (HSV-1) is transmitted through contact with open lesions, usually on the lips or inside the mouth. Type 2 (HSV-2) is most often transmitted by genital contact, and vaginal or anal intercourse and oral-genital contact are the primary transmission modes. But HSV-2 can be transferred by hand contact as well. There are no vaccines available and no cure for HSV infection exists. Oral antiviral drugs acyclovir (Zovirax), valacyclovir (Valtrex), and famciclovir (Famvir) help by partially controlling the signs and symptoms during initial and recurrent episodes. 7. ANS: 1, 4, 5 The teaching plan for a woman with genital herpes simplex virus type 2 (HSV-2) infection should include encouraging the women to have yearly Papanicolaou tests because she is at increased risk for cervical cancer and telling the patient that her partner must use a condom for intercourse even when lesions are not present. The woman also needs to be advised that medications can reduce the frequency and severity of her symptoms. She can become pregnant, but a physician should supervise her closely. Various guidelines are used to determine whether the patient should have a vaginal delivery or cesarean section. The goal is to decrease the risk of transmission to the baby. New diagnostic procedures allow the physician to detect active disease more accurately than in the past. No cure for HSV infection exists, but the oral antiviral drugs acyclovir (Zovirax), valacyclovir (Valtrex), and famciclovir (Famvir) help by partially controlling the signs and symptoms during initial and recurrent episodes. She needs to know to start the drug when preliminary (prodromal) symptoms of recurrence are experienced or within 1 day of the outbreak of lesions. Some patients with especially disabling recurrences can take one of these drugs continuously to reduce the frequency of outbreaks. 8. ANS: 3 The teaching plan for a patient with genital warts should include information that a topical medication can remove the warts but is not curative. Genital warts can be transmitted to a sexual partner and are not caused by poor personal hygiene. There is no cure for these warts but removal of visible warts provides symptomatic relief. Some treatments such as the application of podofilox, imiquimod, or kunecatechins can be managed by the patient. Other treatments must be administered by the physician (i.e., cryotherapy, which uses liquid nitrogen or solid carbon dioxide [CO2] to freeze the warts; topical trichloroacetic acid, bichloroacetic acid, or podophyllin resin; surgical removal; injection of interferon into the lesions). 9. ANS: 2, 4, 5 Effective use of condoms should include information that latex condoms are preferred over natural-membrane condoms because some pathogens can pass through natural-membrane condoms. Also, to put a condom on, hold it by the tip and unroll it onto the penis and leave a space of about 1 inch at the tip for semen. Make sure to withdraw the penis carefully after ejaculation to keep the condom from slipping off and spilling the contents and to avoid unprotected contact. Condoms do not provide 100% protection against disease transmission. Use only water-based lubricants because oil-based and other lubricants can cause the condom to break. Spermicidal drugs may be used. Protect condoms from heat and sunlight to keep them from deteriorating, and do not use condoms that are brittle, discolored, or in damaged packages. 10. ANS: 1, 3, 4, 5 Gonorrhea, syphilis, trichomoniasis, and chlamydia can usually be cured with antimicrobial drugs. There is no cure for herpes simplex virus infection, but the oral antiviral drugs acyclovir (Zovirax), valacyclovir (Valtrex), and famciclovir (Famvir) can help by partially controlling the signs and symptoms during initial and recurrent episodes. Chapter 56: Integumentary System Introduction 1. ANS: 2 The functions of the skin are protection, body temperature regulation, secretion, sensation, and synthesis of vitamin D. In addition, the blood vessels of the skin can serve as a blood reservoir. To regulate body temperature, the skin participates by altering the diameter of surface blood vessels and through sweating. To dissipate heat, the blood vessels dilate. As the blood flows close to the body surface, heat is lost through the surface. To retain heat, blood vessels constrict and heat loss is minimized. Sweating helps cool the body because heat is lost as sweat evaporates from the skin. The skin’s protective function is shielding underlying tissues from trauma and pathogens and preventing excess loss of fluids from those tissues. A second type of protective function is fulfilled by Langerhans cells, which initiate an immune response when foreign substances invade the epidermis. Sebum is another secretion function that coats the skin, creating an oily barrier that holds in water. The skin does not react to sunlight by producing vitamin C, but vitamin D. 2. ANS: lentigines These pigmented spots on sun-exposed areas are commonly called liver spots, although they have nothing to do with the liver. Chapter 57: Skin Disorders 1. ANS: 1, 3, 5 To help prevent scratching and skin injury for a client who is experiencing severe itching secondary to atopic dermatitis, the nurse should maintain room temperature around 70 F, have the client wash new clothing before wearing it, and encourage the client to wear loose clothing. The sensation of itching is not completely understood, but it may be triggered by touch, temperature changes, and emotional stress, as well as chemical, mechanical, and electrical stimuli. The severity of the response to stimulation is enhanced by emotional stress, anxiety, and fear. Pruritus is a prominent symptom with psoriasis, dermatitis, eczema, and insect bites. It may also be seen with the following systemic conditions: urticaria, some cancers, renal failure, diabetes mellitus, thyroid disorders, liver disease, and anemia. Hot baths are avoided as well as other factors that aggravate itching, such as temperature extremes, extremely dry air, irritating fabrics, chemicals, sweating, and stress. Keratolytics are used for the treatment of scales on a patient with psoriasis. 2. ANS: 4 Contact dermatitis is an inflammatory condition caused by contact with a substance that triggers an allergic response. Topical use of some herbal products and aloe can cause allergic dermatitis in susceptible persons. Angelica can cause a skin rash if a patient is exposed to sunlight. It is not related to infestations of parasites. Contact dermatitis is contact with the skin and not an oral or parenteral drug allergic reaction. However, some patients develop contact dermatitis to some ointments such as Bacitracin. It is not excessive dryness but an inflammatory condition triggered by an allergic response. 3. ANS: 4, 5 Psoriasis can be aggravated by stress as well as by streptococcal infections, overuse of alcohol, and drugs such as lithium, antimalarials, angiotensin-converting enzyme inhibitors, and beta-blockers. Moderate to severe psoriasis may be treated with PUVA, a combination of methoxsalen and ultraviolet A (UVA) light, but this is contraindicated during pregnancy because of the risk of fetal harm. No cure for psoriasis exists, but it can be treated topically or systemically. Psoriasis is an autoimmune disorder and cannot be transmitted by direct contact. Anthralin (Anthra-Derm) may be used to remove heavy scales but, after a specified period of time, it is removed with tissues. 4. ANS: 1 To reduce the risk of recurrence of intertrigo in an obese patient in a long-term care facility, the patient needs to keep body folds clean and dry. If she has pendulous breasts, she needs to wear a soft, supportive bra, and if incontinence has contributed to perineal intertrigo, then positioning the patient with the legs apart allows moisture to evaporate. Intertrigo is inflammation of the skin where two skin surfaces touch: axillae, abdominal skinfolds and the area under the breasts. The affected area is usually red and “weeping,” with clear margins. If the skin is not broken, then it needs to be washed with water twice daily and not just 3 times a week. Cornstarch is contraindicated because it supports the growth of Candida albicans. The area is then rinsed and patted dry. Affected areas are not scrubbed with topical antiseptics. Scrubbing can increase the irritation to the skin. For severe inflammation or fungal infection, treatment may include a topical corticosteroid or antifungal drug. 5. ANS: 4 The most important statement to give to a patient taking isotretinoin (Accutane) is that she needs to be aware that the drug is teratogenic (harmful to a developing fetus) and can cause severe fetal deformities. Therefore, women who take the drug must prevent pregnancy until at least 1 month after therapy has been completed. Two forms of effective contraception must be used if the patient is sexually active while taking the drug. Accutane is an oral medication that has a drying effect on the skin. Tell the patient to expect the condition to worsen initially and then begin to improve. Improvement of the acne can take several months. Sensitivity to the sun occurs when Accutane is taken. 6. ANS: 3 Herpes simplex virus (HSV) infections are treated with acyclovir (Zovirax) or (for cold sores) docosanol (Abreva). Acyclovir (Zovirax) does not cure HSV infections. Patients still can transmit the infection to others despite antiviral therapy and the absence of lesions. Antiviral drugs may reduce the severity and frequency of outbreaks. Oral acyclovir is more effective than the topical preparation for initial and recurrent infections. Analgesics and topical anesthetics may be prescribed for pain. Hydrocortisone (Cortizone) is used to reduce inflammation in various skin disorders. Isotretinoin (Accutane) is used to treat acne and may decrease risk of skin cancer. Methoxsalen (Oxsoralen) and ultraviolet A light (PUVA) decreases proliferation of epidermal cells in psoriasis. 7. ANS: avoid excessive sun exposure The best way to prevent skin cancer is to avoid sun exposure. Other risk factors for skin cancer are fair skin with freckling, light-colored hair and eyes, male gender, cigarette smoking, tanning beds, and a tendency to sunburn easily. 8. ANS: 2 Typical melanomas have irregular borders and uneven coloration. A malignant melanoma arises from the pigment-producing cells in the skin. It is the most serious form of skin cancer because it can be fatal if it metastasizes. Basal cell carcinomas usually begin as painless, nodular lesions that have a pearly appearance. They are thought to be related to sun exposure. Squamous cell carcinomas may appear as scaly ulcers or raised lesions with usually no clear lesion margins. Kaposi sarcoma is a malignancy of the blood vessels and is manifested by red, blue, or purple macules accompanied by pain, itching, and swelling. The lesions appear first on the legs and then on the upper body, face, and mouth. Chapter 58: Special Senses Introduction 1. ANS: 1 Aqueous humor is a clear, watery fluid that fills the anterior chamber of the eyeball and is located between the iris and the cornea. Aqueous humor is produced in the ciliary body. The function of aqueous humor is to moisturize and nourish the lens and cornea. The production and drainage of the fluid from the eye must be balanced to maintain normal pressure within the eye. Ciliary fluid is produced by the ciliary muscle and is the same fluid as aqueous humor. The larger posterior chamber behind the lens is filled with vitreous humor. Vitreous humor is a clear, gelatinous material that helps hold the retina in place. Refractive fluid pertains to refraction. 2. ANS: 1, 2, 4, 5 As people age, typical changes occur in the structures and functions of the eye. The skin around the eye becomes wrinkled and looser. The amount of fat around the eye decreases, permitting the eyeball to sink deeper into the orbit. A grayish ring may be seen around the outer margin of the iris. This ring is called the arcus senilis and may be related to elevated serum lipid levels; it does not affect vision. Tear secretion diminishes and the eyes may feel dry sometimes. The pupil is usually smaller but still responds, although more slowly, to light. 3. ANS: 4 This means that the person could read at 20 feet what a person with normal vision could read at 40 feet. The Snellen chart may be used for vision screening in clinic and office settings. In the hospital, it may be more practical simply to ask the patient to read available print. From a distance of 20 feet, the patient is instructed to read down the chart until more than two mistakes are made on a single line. Each eye is tested separately and then together. The lines are numbered 20 over 200, 100, 70, 50, 40, 30, 25, 20, and 15. The findings are reported as the last line the person could read with no more than two errors. That is, if the person read the 20/30 line with one error but made three errors on the 20/25 line, then the vision would be recorded as 20/30 in the eye tested. It does not mean that people can see best at 20 to 40 feet from objects or that they cannot see more than 40 feet. It is also not reversed where at 40 feet people can read what most people can read at 20 feet. 4. ANS: 2 Phenylephrine ophthalmic preparation instilled in the eye is used to dilate the pupil. This permits a better view of the inner eye. Degenerative changes of the retina may be observed. A darkened room also causes the pupil to dilate. Fluorescein is used to detect abrasions or scratches of the cornea. Fluorescein is applied to the surface of the eye, followed by a saline rinse. The cornea can be anesthetized with eye drops such as proparacaine 0.5% (Ophthaine). Phenylephrine ophthalmic preparation is not used to dilate retinal blood vessels. The blood vasculature of the retina includes the branches and tributaries of the central retinal artery and vein, respectively, and the vascular circle of the optic nerve. The retina is the inner lining of the eyeball and is composed of two layers. The pigmented layer is between the choroid and the sensory layer; it receives nutrients and O2 from the choroid and supplies the sensory layer. 5. ANS: 2 The best way to help a visually impaired resident walk is to let the person hold your upper arm. Standing side by side would not prevent the patient from falling to the opposite side. Walking behind the patient and advising the patient of obstacles definitely put the patient at risk for falling forward. Having the patient walk behind you with hands on your shoulders prevents you from seeing what is happening to the patient and is very risky for the patient to fall and could be physically harmful to the nurse or assistant. 6. ANS: 3 The position of the auricles is significant. For adult patients, pull the auricle up and back to straighten the canal; then guide the speculum gently into the canal. For a child, the auricle is pulled down and back. Normally, the top of the auricle is at approximately the level of the eye. The ears should be positioned symmetrically. The auricles should be examined for shape, lesions, and nodules. The auricle must not only be pulled straight up but also back. Pulling the earlobe down or pulling the auricle back does not visualize the external auditory canal and tympanic membrane. 7. ANS: 3 A normal response to the Rinne test is when the patient reports hearing the tuning fork when it is placed on the mastoid bone and when the tines are then positioned near the ear canal. Normally, air conduction is better than bone conduction. Therefore, the patient should be able to hear the sound transmitted through air even after it can no longer be heard through bone. This normal finding is recorded as “AC > BC” (air conduction is greater than bone conduction). If bone conduction is greater than air conduction, then the patient has a conductive hearing loss. Some factors that may cause conductive hearing loss include obstruction of the external canal or eustachian tube and otosclerosis. Sensorineural hearing loss is sometimes called nerve deafness and is a disturbance of the neural structures in the inner ear or the nerve pathways to the brain. Patients with sensorineural hearing loss can hear sounds but have difficulty understanding speech. 8. ANS: 2, 3 One of the changes in the ears of the older adult is that hairs in the canal become coarser and longer, especially in men. Cerumen production declines and the protective wax is drier. The eardrum thickens rather than thinning, and the bony joints in the middle ear degenerate somewhat. Changes occur in the external, middle, and inner ear with aging. Some changes have no functional significance, but others can lead to serious problems with hearing or balance. These changes are not thought to impair hearing significantly. Changes in the inner ear, however, affect sensitivity to sound, understanding of speech, and balance. Degenerative changes include atrophy of the cochlea, the cochlear nerve cells, and the organ of Corti. The result is that many older people have some degree of hearing loss and some have problems with balance. The type of hearing loss most often associated with age is called presbycusis. 9. ANS: 4 If the hearing aid is not working, first check to be sure it is turned to the on position. If it is on, then check the ear mold to see if it needs cleaning. The next step is to check battery placement. If the battery is not inserted correctly, then the hearing aid will not work. If the hearing aid has a cord, then check it to see if it is broken or unplugged. If these checks fail to locate the problem, then change the battery. If a new battery does not correct the problem, then the cord can be changed. Should the hearing aid still not work, return it to the dealer for service. Turning up the volume needs to be done by the patient. 10. ANS: 1 When the nurse is receiving a shift report about a newly admitted patient who is very hard of hearing, it is most important for the nurse to ask how the patient communicates. Being able to communicate with the patient is essential to nursing practice. Asking if the patient knows about latest hearing technology or if has ever been hospitalized before is not that important. Also, asking about a family member staying to interpret is not that important and may not be necessary. 11. ANS: 2 Medication placed on the external portion of the ear wick soaks the gauze and distributes the medication in the canal. The nurse should not remove the packing or trim the gauze to prevent the packing from being accidentally pulled out. The RN does not need to be notified that the drops cannot be given. However, if not familiar with the ear gauze, then it is important to ask the RN for information. An ear wick is a long piece of gauze that extends out of the ear canal. The physician may insert an ear wick through the blocked canal if the external canal is obstructed by edema. Any drainage from the ear should be treated as infected material and handled carefully. Chapter 59: Eye and Vision Disorders 1. ANS: 1, 2 The only curative treatment for cataract is removal of the lens, although mydriatic drugs may be helpful in the early stages. Cataract extraction is the most frequently performed eye operation in the United States. After cataract surgery, the most important thing is to prevent strain on the operative eye. To decrease strain on the eye, tell the patient to sleep on the unaffected side, and not to rub the eye. Also, tell the patient not to lift more than 5 lbs, and avoid bending forward. Postoperative patients with cataract surgery should not have severe pain. A mild analgesic is usually ordered as needed. If a patient complains of severe pain, then tell the patient to notify the physician, because severe pain may indicate hemorrhage or rising pressure within the eye. There should be no bleeding after the procedure, and usual activities cannot be immediately resumed because of the risk of injury to the eye. The surgeon will tell the patient when to resume daily activities. 2. ANS: 2 The best way to help a visually impaired resident walk is to let the person hold your upper arm. Standing side by side would not prevent the patient from falling to the opposite side. Walking behind the patient and advising the patient of obstacles definitely put the patient at risk for falling forward. Having the patient walk behind you with hands on your shoulders prevents you from seeing what is happening to the patient and is very risky for the patient to fall and could be physically harmful to the nurse or assistant. 3. ANS: 3 Corneal opacity is treated by removal of the scarred cornea and replacement with a healthy cornea. The surgical procedure is called a keratoplasty. Rejection of corneal grafts is not common, but it can happen. When rejection occurs, blood vessels appear in the cornea and the cornea becomes cloudy. Other symptoms of rejection include redness, swelling, decreased vision, and pain. Cloudiness in the affected eye is not normal. Elevating the patient’s head and encouraging increased fluid intake is not the action to take for rejection of the graft. It is the surgeon’s decision to prepare the patient for emergency surgery. 4. ANS: 1, 4 Open-angle glaucoma is more common than angle closure glaucoma. Chronic open-angle glaucoma results from some alteration that prevents the normal passage of aqueous humor through the trabecular meshwork. Carbonic anhydrase inhibitors reduce intraocular pressure by decreasing the formation and production of aqueous humor. Hyperosmotic drugs, including oral glycerin and intravenous mannitol, increase aqueous outflow and promote movement of fluid from the intraocular structures. These medications do not dilate the canal of Schlemm. Trabeculoplasty is done using a laser to create multiple holes and relax the trabecular meshwork to improve drainage of aqueous humor from the anterior chamber. Open-angle glaucoma medications do not reduce systemic blood pressure. Beta-blockers reduce heart rate but are not intended to reduce systemic blood pressure. 5. ANS: 2 The most serious complication of acute angle closure glaucoma is permanent blindness. Angle closure glaucoma is also called acute glaucoma. It accounts for only approximately 10% of all glaucomas. Because open-angle glaucoma is painless, the patient may not appreciate the need for ongoing treatment. There is no rupture of the eyeball. Other signs and symptoms are blurred vision, halos around lights, nausea and vomiting, and headache on the affected side. There is a rapid rise in intraocular pressure, which is often greater than 50 mm Hg. There is no rise in intracranial pressure. 6. ANS: 3, 4 Positioning orders may be very specific for these patients and are dependent upon the location of the repaired tear and the use of air or saline to support the repair. If an air bubble has been injected, then it will rise to the top of the eye. If the patient’s detachment is in the back of the eye, then a face-down position is necessary to keep the bubble in the right place. Saline travels down rather than up, so the same patient would need to stay face up if saline had been injected. The surgeon prescribes any activity limitations. A scleral buckle is not related to postoperative patient positioning. Sometimes it is used with laser treatment or cryotherapy. This is a Silastic band that is secured around the eyeball under the sclera. Small silicone implants are sutured under the band opposite the area of detachment. This procedure brings the layers of tissue back together by pressing from the outside. The band is left in place permanently. Positioning is not related to the patient’s preference or intraocular pressure. Chapter 60: Ear and Hearing Disorders 1. ANS: 2 Medication placed on the external portion of the ear wick soaks the gauze and distributes the medication in the canal. The nurse should not remove the packing or trim the gauze to prevent the packing from being accidentally pulled out. The RN does not need to be notified that the drops cannot be given. However, if not familiar with the ear gauze, then it is important to ask the RN for information. An ear wick is a long piece of gauze that extends out of the ear canal. The physician may insert an ear wick through the blocked canal if the external canal is obstructed by edema. Any drainage from the ear should be treated as infected material and handled carefully. 2. ANS: 1, 3 Appropriate nursing measures for the patient who is having an acute attack of Ménière disease include keeping the room quiet and dark and delaying routine care until the patient no longer complains of being dizzy. During an acute attack in the hospitalized patient, let the patient remain still because movement may trigger vomiting. Giving medications for nausea and vomiting and keeping an emesis basin close to the patient are very important. An intravenous infusion probably will be ordered to provide fluids, medications, or both. Advising the patient to drink additional fluid can stimulate vomiting and is not appropriate during an acute attack. Monitoring hourly vital signs is not necessary unless initially abnormal, and assisting the patient to sit in the chair for an hour twice a day is contraindicated during an acute attack. Once the symptoms subside, assist the patient when getting up until dizziness goes away. 3. ANS: 1 Instructions about “ringing in the ears” are important to tell a patient who is taking an aminoglycoside antibiotic. Aminoglycosides can cause permanent hearing loss. Ototoxicity can range from reversible tinnitus to permanent hearing loss. The extent depends on the drug dosage and how long it was given. Ototoxicity is damage to the ear or eighth cranial nerve caused by specific chemicals and some drugs, such as salicylates (i.e., aspirin) and aminoglycoside antibiotics. Checking the white part of the eye for a color change is not needed because ototoxicity has no relationship to the liver. Restricting fluid intake has no effect on the toxicity of these drugs. Orthostatic hypotension is not related to the ototoxicity of these drugs. Hearing, balance, or both may be affected. Patients who have poor renal function are at special risk for ototoxicity. 4. ANS: 3 Otosclerosis can be treated surgically with a procedure called a stapedectomy. Otosclerosis is a hereditary condition in which an abnormal growth causes the footplate of the stapes to become fixed so it cannot vibrate and sound waves cannot be transmitted to the inner ear. The effect of this abnormality is a conductive hearing loss. Sensorineural hearing loss and Ménière disease cannot be treated with a stapedectomy. Otitis media is an acute or chronic infection of the middle ear, and sometimes called suppurative or purulent otitis media because of the presence of purulent material. 5. ANS: 3 Patients considering a cochlear implant need to know that results vary from minimal to excellent improvement in hearing. Some patients can hear well enough to understand speech on a telephone; others can hear only environmental sounds, such as sirens, doorbells, and ringing telephones. This procedure does not restore hearing 99%, and the complications are not disabling. Cochlear implants allow people to discriminate speech. Several months of training are needed to learn to tell sounds apart, so candidates for the implants must be highly motivated and carefully screened. Chapter 61: Psychobiologic Disorders 1. ANS: 1 Nursing interventions are diverse and geared toward helping patients and families cope with the mental illness, manage their lives, and enhance quality of life. The focus is not just limited to tasks such as administering medications, protecting other people from the patient, or controlling a patient’s behavior. 2. ANS: 2, 4 A therapeutic relationship is one that focuses on the needs of the patient as to purpose, place, and time. It has a clear purpose and an ending. A social relationship focuses on needs of both participants, does not require a defined purpose, has less formal boundaries, and is not time-limited. 3. ANS: 4 Clarifying is one way of validating that you understand what the patient is saying. Asking questions may help patients clarify their thoughts. Telling the patient that he looks sad does not clarify but instead makes a statement, and asking the patient a question to obtain information is not focused on the patient’s feelings. Also, asking the patient why she “gets quiet when I ask about your husband” is not focusing on the patient’s feelings but trying to get personal information. Better to say, “You seem to get quiet when I ask you about your husband.” 4. ANS: 1, 2, 3, 5 Data collected on a mental status examination needs to include thought content, mood and affect, appearance, and memory and attention. Other components for this examination include activity, speech and language, perceptual disturbances, insight and judgment, sensorium, and general intellectual level. Reaction time is not evaluated in a mental status examination but included with teaching for patients taking antipsychotic or antianxiety drugs. 5. ANS: 3 This patient is exhibiting symptoms of conversion disorder. This disorder is also called functional neurologic symptom disorder. Symptoms may include blindness, deafness, or paralysis of the legs without a physiologic cause. Usually, the symptoms are neurologic and occur in response to some threatening or traumatic event. The symptoms are real and not created and can cause significant distress or impairment in social, occupational, or other important areas of functioning. In some cases, a true physiologic cause for the symptoms has been discovered years later, so a diagnosis of conversion disorder is usually tentative and provisional. Illness anxiety disorder (hypochondriasis) involves individuals who are preoccupied with having or acquiring a serious, undiagnosed illness. They are convinced that they have a serious medical problem in spite of the absence of any concrete medical findings and will seek other opinions if one physician does not validate their concerns. They often take multiple prescription medications from various health care providers. The feared illness often becomes a central part of the individual’s life and may impair social, occupational, or other important areas of functioning. Posttraumatic stress disorder (PTSD) is a cluster of symptoms experienced after a distressing event that is outside the range of normal events, and one in which the person experienced intense fear, helplessness, or horror (or a combination of these feelings). Examples of symptoms include reexperiencing the trauma through repeated and intrusive recall of the event (flashback); avoiding situations that in some way remind the person of the event; feeling detached from other people; and having a heightened sense of arousal, which is experienced as difficulty falling asleep, hypervigilance, an exaggerated startle response, or a combination of these. In panic disorder, a patient experiences recurrent panic attacks, which are intense episodes of apprehension, at times to the point of terror. Often these attacks are accompanied by feelings of impending doom. 6. ANS: 1 The best response is that schizophrenia is a mental illness that affects a person’s thinking and distorts a person’s view of reality. It refers to a group of very serious, usually chronic thought disorders in which psychotic symptoms primarily impair the affected person’s ability to interpret the world accurately. It is characterized by disturbances in thinking, mood, and behavior. Many schizophrenic patients have functioned normally in early life and are often very intelligent and well educated before the onset of the first symptoms. With effective drug and psychiatric therapy, most people with schizophrenia do not require permanent care in a psychiatric facility. Medications and treatments are available; the most commonly administered medications for people with schizophrenia are antipsychotic (neuroleptic) and antiparkinsonism medications, which are at times administered to prevent or relieve some of the side effects of the antipsychotics. Newer medications have been very successful in helping people return to their previous activities. The cause of schizophrenia disorder is not certain. The episodes do not resolve in 1 to 2 weeks, but the timing varies. The patient’s ability to function in the areas of work, interpersonal relationships, or self-care deteriorates significantly during acute episodes and may not return to baseline after the first psychotic episode. With each subsequent episode, the ability to function independently continues to deteriorate, intelligence quotient (IQ) levels drop, and thinking becomes very concrete. 7. ANS: 1, 2, 4 Nursing interventions to promote communication include letting the patient know that you do not share his or her delusions, encouraging the patient to attend to activities in the environment, and informing the patient that hallucinations are part of the disease. Pointing out flaws in the patient’s illogical statements is argumentative and criticizing and is not therapeutic. Also, asking the patient to explain why he behaves as he does would probably not be effective. Patients with schizophrenia usually have little insight into their illness. Some communication interventions include seeking clarification and verbalizing the implied, speaking in a gentle and nonconfrontational manner, decreasing unwanted environmental stimuli, focusing on reality (i.e., real events, real people), letting the patient know that you do not share the delusion without directly confronting the delusion, encouraging the patient to express feelings and anxiety, and connecting delusions with anxiety-provoking situations. 8. ANS: 1, 2, 3, 4, 5 Data the LVN/LPN should collect from each resident include dry mouth, shuffling gait, muscle rigidity, abnormal movements, and faintness upon changing from a sitting to standing position. These drugs can cause drowsiness and sedation, postural hypotension, dry mouth, and blurred vision (especially in frail and older people). Watch for extrapyramidal side effects (EPS), such as Parkinson syndrome–like involuntary movements, muscle rigidity, dystonia, akathisia, and oculogyric crisis. Long-term administration may result in tardive dyskinesia, which is usually an irreversible syndrome that occurs after prolonged use of antipsychotic drug therapy. It involves persistent involuntary movements of the face, jaw, and tongue that lead to grimacing, jerky movements of the upper extremities, and tonic contractions of the neck and back. 9. ANS: narcissistic Narcissistic personality disorder involves a pattern of grandiosity, a need for admiration, and a lack of empathy. The individual has an exaggerated sense of self-importance; requires excessive admiration; takes advantage of others to achieve his or her own ends; is often envious of others; and exhibits arrogant, haughty behaviors or attitudes. Many often appear dramatic, highly emotional, or erratic. 10. ANS: 1 Divalproex sodium (Depakote) is one of the key medications for people with manic episodes. Relief from symptoms can take up to 3 weeks. Divalproex is metabolized by the liver, so patients with liver disorders should receive lower dosages. A valproic acid level is done at intervals to assess blood levels. The therapeutic level of divalproex sodium in the blood is 50 to 100 µg/mL, and the patient can develop toxicity if the blood level exceeds the therapeutic range. Acute dystonic reactions are one of the extrapyramidal side effects (EPS). These stem from the effects of the antipsychotics on the extrapyramidal tracts of the central nervous system and can occur after one dose of medication or during the first few days of treatment. They consist of severe muscle contractions involving the tongue, face, neck (i.e., torticollis), and back (i.e., opisthotonos). The larynx also may be constricted (i.e., laryngospasm), which compromises the patient’s airway. Acute dystonia is a medical emergency and must be treated immediately. Also, certain antiemetics such as promethazine (Phenergan) and prochlorperazine (Compazine) can cause dystonic reactions. Extrapyramidal syndromes are related to EPS and include parkinsonian syndrome, tardive dyskinesia, and neuroleptic malignant syndrome. They are related to people taking antipsychotic (neuroleptic) drugs and certain antiemetics such as prochlorperazine (Compazine). Chapter 62: Substance Abuse 1. ANS: biologic The majority of experts in substance-related disorders subscribe to the biologic theory that proposes that faulty physiologic processes contribute to addiction to a specific substance and that addiction is a physical illness. Most believe that it most likely involves a combination of biologic, cultural, and behavioral factors. 2. ANS: denial Defense mechanisms used by addicts include denial, rationalization, intellectualization, and projection. Denial is apparent when patients state that they do not have a problem with alcohol or drug use despite evidence to the contrary. 3. ANS: 2 Hair analysis is a recent addition to the methods for the detection of substance use. It requires sensitive technology but may be very helpful in monitoring patients for relapse. Depending on the length of the hair, a substance can be detected for up to 1 year after only 2 or 3 days of use. However, the presence of addiction or whether the person is currently under the influence of the substance cannot be inferred from a positive finding. The evidence this test provides regarding long-term substance use may be a valuable tool in the diagnosis and follow-up of substance use disorders. After collection, the sample is kept under chain of custody (i.e., each person handling the sample signs a special document that accompanies the sample until it can be analyzed). Any temporary storage of the sample is maintained under secure conditions. 4. ANS: 72 hours The second stage, major withdrawal, begins with the onset of seizures and hallucinations and can advance to life-threatening delirium tremens. This stage usually occurs after approximately 3 days (72 hours) and sometimes less without alcohol or treatment, and can be predicted from extreme elevations in temperature, pulse, and blood pressure. The patient typically becomes disoriented and confused. Hallucinations are often visual and “animal” in nature. 5. ANS: 2 Enabling behaviors are any behaviors that “cover up” or protect alcoholics from the consequences of their drinking behaviors. Those who enable are sometimes considered co-dependent, in that their behavior is highly structured around managing and adapting to the alcoholic’s dysfunctional behavior. Support is to give moral or psychological support, aid, or courage to someone. Rationalization is a defense mechanism in which people attempt to justify the reasons for substance use and make an “excuse” for addiction. Compensation is to give money or something else of value to (someone) in return for something (such as work) or as payment for something lost, damaged, etc. 6. ANS: 1, 2, 3, 4 The treatment team may recommend the use of disulfiram (Antabuse) to assist the alcoholic who is highly motivated to remain sober but who recognizes that poor impulse control may increase the odds of relapse. Signs and symptoms of a disulfiram-alcohol reaction include hypotension, rapid heart rate, confusion, nausea, and vomiting. Flushing and not pallor also occur. Other symptoms include headache, dizziness, difficulty breathing, sweating, coma, convulsions, and death. The severity of the symptoms varies from person to person, and symptoms can last for 30 to 60 minutes or more. 7. ANS: 1 Inhalants can cause central nervous system, progressive brain, and cardiac damage. Inhalants do not cause sexual dysfunction or schizophrenia. Euphoria and giddiness and not aggressive behavior may occur. Other symptoms, including headache, fatigue, drowsiness, and objective signs such as dysrhythmias, damage to kidneys, and liver abnormalities, can occur. 8. ANS: 3 Naloxone hydrochloride (Narcan) is given to reverse the effects of opioids and prevent respiratory depression. Narcan and nalmefene (Revex) are opioid antagonists that counteract the dangerous respiratory depressant effects of heroin or other opiate overdose. When Narcan is given to a person who is addicted and under the influence of an opiate, the person may experience acute withdrawal symptoms. Narcan does not raise the blood pressure or stimulate the heart. One of the side effects of Narcan is fast or irregular pulse and seizures. Other possible side effects of Narcan include change in mood, increased sweating, nausea, nervousness, restlessness, trembling, vomiting, allergic reactions such as rash or swelling, dizziness, fainting, flushing, headache, heart rhythm changes, sudden chest pain, and pulmonary edema. 9. ANS: 2, 3 Older adults are more likely to abuse over-the-counter (OTC) and prescription sleeping pills, pain medications, or tranquilizers than illegal drugs such as cocaine and marijuana. Although older adults use approximately 25% of the medications used in the United States, only about 2% to 5% of men and less than 1% of women older than 65 years abuse alcohol. Most of the older adults who abuse alcohol have maintained a regular pattern of use over many years without obvious problems, so alcohol is not one of the most commonly abused drugs. 10. ANS: 2 Average adolescents view themselves as omnipotent and deny the likelihood of negative consequences of drug use and their behaviors. Breaking through adolescents’ denial is the most difficult aspect of treatment, especially because they seldom want to be in treatment and do not see the potential negative consequences of their behaviors. It is estimated that 1 in 4 adolescents, and not 1 in 10, become involved in substance abuse. Entry into treatment usually occurs as a result of a crisis situation and not the abuser seeking treatment on his or her own. It is controversial to mix adolescents with adults in treatment programs because of adolescents’ vulnerability to being influenced by the more experienced and usually charismatic adult substance user. Successful rehabilitation usually involves regular involvement in an Alcoholics Anonymous (AA) group made up of younger people to whom the adolescent can relate; successful development of a new, non–drug-using peer group; and reentry into school with the support of other recovering classmates. AA group meetings may be held at high schools in some cities. Chapter 63: First Aid, Emergency Care, and Disaster Management 1. ANS: 2 If the patient is bleeding the nurse would want to apply pressure. By applying pressure this would decrease the amount of bleeding until further treatment can be rendered. 2. ANS: 4 If circulation is not restored within 4 minutes after a cardiac arrest, brain cells are the first cells to begin to die. Irreversible kidney failure and coagulation of blood begins after a prolonged episode of cardiac arrest. The lungs do not fill with fluid during cardiac arrest because there is no blood flow to the lungs. 3. ANS: 3 In this situation, the Poison Control Center needs to be called immediately, and the caregiver should follow their directions. Do not give the client anything to drink or any syrup of ipecac, but follow the Poison Control Center’s directions for intervention. Then drive the client to the emergency department (ED). 4. ANS: 3 The force of abdominal thrusts can safely dislodge a foreign body from the airway by causing the object to be expelled from the airway. 5. ANS: 1 When suspecting a leg fracture, the first-aid provider should immobilize the leg in the same position in which it was found. The injured parts need to be immobilized, including the joints above and below the injury. Trying to straighten a broken bone could cause further trauma to the bone and surrounding soft tissue. If there is severe bleeding, direct pressure to the artery above the injury, and not a tourniquet, needs to be applied. Do not elevate the injured part above the level of the victim’s heart but instead splint the bone in the same position in which it was found and use as little movement as possible. 6. ANS: 1, 4, 5 Signs of increased intracranial pressure include headache, unequal pupils, and confusion as well as decreasing level of consciousness, impaired sensory or motor function, and projectile vomiting. Blood pressure is increased, not decreased, with a widening pulse pressure. Respiratory rate is decreased, not increased, along with a decreased pulse. 7. ANS: 3 The immediate concern is to stop the burning process. If a victim’s clothing is burning, have him drop to the ground and roll to extinguish the flames. Then try to smother the flames with a coat or blanket or extinguish with water if flames are not due to chemicals or flammable liquids. Telling him to run and jump in the lake would aggravate the burning process and increase the client’s injuries. Trying to extinguish the flames with your hands would be ineffective and only cause severe hand burns to the bystander. Running to the phone to call for help would take too much time and would increase the victim’s injuries and could lead to death. 8. ANS: 1, 2, 5 If the football player collapses on a hot, humid day and is breathing and not responding, then he is probably suffering from hyperthermia. The first intervention is to move the player to a cool location and then activate the Emergency Medical Services (EMS). Then apply wet, cool towels to the trunk and the extremities, and place ice packs on the forehead and axillae. Since he is not verbally responding, do not give him anything orally. Also, EMS should be called before the parents are notified, and EMS will transport him to the hospital. 9. ANS: cardiac dysrhythmias Excessive rewarming of hypothermic victims sends lactic acid and cold blood from the extremities to the heart, leading to a risk for cardiac dysrhythmias. 10. ANS: 1 A tick bite that 1 week later appears as a ring-shaped, reddened area at the bite site could be a sign of early Lyme disease. This finding would call for a referral for medical treatment. Application of antibiotic ointment would not treat the Lyme disease. Neurotoxic reactions to black widow spider bites include pain, nausea, vomiting, fever, weakness, muscle cramps, and headache occurring right after the bite. Constricting bands are not recommended. The swelling from brown recluse spider bites usually occurs within a few hours after the bite and there is no specific antivenin available for treatment.