Study Guide_Exam#1_NUR341 BLOOMFIELD COLLEGE FRANCES M. McLAUGHLIN DIVISION OF NURSING Study Guide Exam #1 Exam #1 will consist of 67 questions as follows: One question testing your competency for the calculation of drug dosage (similar to the questions in your math exam).... this is part of the DON policy - 3 multiple response questions (see all that apply) - Study guide: study with emphasis and focus on the following concepts/principles for exam #1: Topic Iggy ATI Review Book Key points & Presentations Exam #1 (Genetics, Cancer, Fluids and Electrolytes, ABGs, Respiratory system) One Math question (Dosage calculation) Math skills Genetics and Ch. 6 Group Different types of genetic inheritance (autosomal vs. x-linked) Genomic Presentation: Pathophysiology of the genetic makeup Relationship of Concepts for Genetic testing: definition, when it is required and for what type of genetics and Medicaldisorders. pharmacotherapy Surgical Genetic counseling: requirements for counseling, nurses’ role in (pharmacogenetics) Nursing counseling, psychosocial issues (legal/ethical considerations) GINA legislation and consumers protection against discrimination as being discussed in class and pp slides. - Huntington's disease is an autosomal dominant disorder - A silent mutation occurs if a base-pair is changed but the DNA still codes for the same amino acid. This is possible as amino acids have more than one codon (triplet) that codes for them. Insertion or deletion of one or more base-pairs is a frameshift mutation and can change the entire reading frame. A mutagen is an agent that increases the frequency of mutations. A spontaneous mutation occurs when a mutation occurs but there is no exposure to a mutagen. - Turner Syndrome. A sex chromosome is missing, and the person's chromosomes are 45,X. Characteristic signs are short stature, female genitalia, webbed neck, shieldlike chest with underdeveloped breasts and widely spaced nipples, and imperfectly developed ovaries. Turner syndrome results from monosomy of sex chromosomes (genotype XO). - Not all traits are produced by single genes; some traits result from several genes acting together. These are called polygenic traits. When environmental factors influence the expression of the trait (as is usually the case), the term multifactorial inheritance is used. Many multifactorial and polygenic traits tend to follow a normal distribution in populations (the familiar bell-shaped curve). Mutations: A silent mutation occurs if a base-pair is changed but the DNA still codes for the same amino acid. This is possible as amino acids have more than one codon (triplet) that codes for them. Insertion or deletion of one or more base-pairs is a frameshift mutation and can change the entire reading frame. A mutagen is an agent that increases the frequency of mutations. A spontaneous mutation occurs when a mutation occurs but there is no exposure to a mutagen. Concepts of Ch. 13 Fluid Imbalances: ABG's interpretation and management. Fluid and Ch. 43 Fluids & Electrolytes: different types of fluids for specific diagnosis, Electrolyte Electrolyte assessment, clinical manifestations, nursing care and management; Balance. Imbalances: Ch. 44 electrolyte imbalances in: - Study Guide_Exam#1_NUR341 Concepts of Acid-Base Balance. Ch. 14 Acid-Base Imbalances: Ch. 45 Sodium, Potassium, and Calcium. Understand the Mechanisms Controlling Fluid and Electrolyte Movement between vascular and interstitial compartments: (Osmosis, Diffusion, Facilitated Diffusion, Active Transport) Understand the idea behind the different pressures and how edema develops: Osmotic Pressure Hydrostatic Pressure Oncotic Pressure Osmolality Fluid Movement between capillaries and interstitial spaces (compartments) Fluid Spacing (1st, 2nd, and 3rd spacing and know examples about each type) Regulation of Water Balance (Hypothalamic Regulation, Pituitary Regulation, Adrenal Cortical Regulation, Renal Regulation). Functions of Aldosterone on fluid & electrolyte balance …. Sodium and potassium. Fluid imbalances ( Hypovolemia and Hypervolemia): know causes and treatment for each type. Difference between hypertonic and hypotonic and effect on the cell contents (swell vs. shrink). Electrolytes (again follow the PPs as a guide to the textbook content; remember the normal values for the sodium, potassium, and calcium). Acid–Base Balance and Arterial Blood Gases (know the normal values of the ABG's and the 4 abnormalities; metabolic and respiratory), you will be asked to identify the acid-base imbalance from the given values of the PaO2, PaCO2, pH, and HCO3) and other questions about the treatment of each type of these imbalances. Which electrolyte-containing fluids should be used for managing a patient with acidosis vs. alkalosis. - Relationship between chloride (hypochloremia or hyperchloremia) and Bicarbonate. - Relationship between Acidosis and Hyperkalemia - The role of plasma proteins and the oncotic colloidal pressure: Lost or diminished plasma albumin production (e.g., from liver disease or protein malnutrition) contributes to decreased plasma oncotic pressure. Plasma proteins are lost in glomerular diseases of the kidney, serous drainage from open wounds, hemorrhage, burns, and cirrhosis of the liver. The decreased oncotic attraction of fluid within the capillary causes filtered capillary fluid to remain in the interstitial space, resulting in edema. - Capillaries become more permeable with inflammation and immune responses, especially with trauma such as burns or crushing injuries, neoplastic disease, and allergic reactions. Proteins escape from the vascular space and produce edema through decreased capillary oncotic pressure and interstitial fluid protein accumulation. (Huether 100) - Tonicity describes the effective osmolality of a solution. (The terms osmolality / osmolarity and tonicity may be used interchangeably.) Solutions have relative degrees of tonicity. An isotonic solution (or isosmotic solution) has the same osmolality or concentration of particles (285 mOsm) as the ICF or ECF. A hypotonic solution has a lower Study Guide_Exam#1_NUR341 concentration and is thus more dilute than body fluids. A hypertonic solution has a concentration of more than 285 to 294 mOsm/kg. The concept of tonicity is important when correcting water and solute imbalances by administering different types of replacement solutions. (Huether 17) - Difference between Hydrostatic pressure (pushes fluids out of the compartment) and Oncotic (colloidal) pressure (pulls fluids into the compartment). Patients with hypoproteinemia (low plasma protein) will be at risk of developing edema. - Edema is excessive accumulation of fluid within the interstitial spaces. The forces favoring fluid movement from the capillaries or lymphatic channels into the tissues are increased capillary hydrostatic pressure, decreased plasma oncotic pressure, increased capillary membrane permeability, and lymphatic channel obstruction. (McCance 100) - Relationship between Acidosis and Hyperkalemia Review and practice ABG’s Hypertonic solutions cause water retention, so the patient should be monitored for symptoms of fluid excess. Crackles in the lungs may indicate the onset of pulmonary edema and are the most serious of the symptoms of fluid excess listed. Bounding peripheral pulses, peripheral edema, or changes in urine output also are important to monitor when administering hypertonic solutions, but they do not indicate acute respiratory or cardiac decompensation. spironolactone is a potassium-sparing diuretic, patients should be taught to choose low potassium foods such as apple juice rather than foods that have higher levels of potassium, such as citrus fruits. Because the patient is using spironolactone as a diuretic, the nurse would not encourage the patient to increase fluid intake. Teach patients to avoid salt substitutes, which are high in potassium. Risk factors for acid-base imbalances in the older adult include chronic kidney disease and pulmonary disease Potassium is given IV for severe hypokalemia. The drug is available in different concentrations, and this drug carries a high alert warning as a concentrated electrolyte solution. The Joint Commission has mandated that concentrated potassium be diluted and added to IV solutions only in the pharmacy by a registered pharmacist and that vials of concentrated potassium not be available in patient care areas. Before infusing any IV solution containing potassium chloride (KCl), check and re-check the dilution of the drug in the IV solution container. Use a controller for solution delivery, maintaining an infusion rate not faster than 5 to 10 mEq of potassium per hour. Prevent accidental overdose of IV potassium by checking and re-checking the concentration of potassium in the IV solution, ensuring that the maximum concentration is no greater than 1 mEq/10 mL of solution. (Ignatavicius 185) Assess for hypocalcemia by testing for Trousseau's and Chvostek's signs Study Guide_Exam#1_NUR341 Topic Iggy ATI Review Book Key points & Presentations Exam #1 (Genetics, Cancer, Fluids and Electrolytes, ABGs, Respiratory system) Concepts of Ch. 20 General Principles Care for of Cancer: Ch.89 Patients with Cancer Screening Cancer and Diagnostic Procedures: Ch.90 Cancer Treatment Options: Ch.91 Cancer Disorders: Ch.92 Pain Management for Clients Who Have Cancer Concepts of Ch. 27 Respiratory Asthma and COPD: assessment, clinical manifestations, management and Care for Diagnostic nursing care. Patients with Procedures: Ch.17 Use of different Oxygen delivery methods (mask, N/C, venturi…etc) and Noninfectious Asthma: Ch. 21 patient safety (educating the patient while on Oxygen especially at Lower COPD: Ch. 22 home) Respiratory Inclusion / exclusion criteria for Flu and Pneumonia vaccines (see also CDC Problems: recommendations for these vaccines) - Asthma The recommended frequency for the administration of Flu and Pneumonia - Gas vaccines. Exchange The flu vaccine is made using duck eggs. Concept Exemplar: Seasonal influenza, or “flu,” is a highly contagious acute viral respiratory Chronic infection that can occur in adults of all ages. The initial manifestations of Obstructive avian influenza are similar to other respiratory infections—cough, fever, Pulmonary and sore throat. These progress rapidly to shortness of breath and Disease pneumonia. In addition, diarrhea, vomiting, abdominal pain, and bleeding (COPD) from the nose and gums occur. Use the antiviral drug oseltamivir (Tamiflu) - Lung Cancer or zanamivir (Relenza) within 48 hours of contact with the infected patient. Study Guide_Exam#1_NUR341 Concepts of Care for Patients with Infectious Respiratory Problems: - Seasonal Influenza - Pandemic Influenza - Gas Exchange Concept Exemplar: Pneumonia - Infection Concept Exemplar: Pulmonary Tuberculosis Ch. 28 Acute Respiratory DisordersPneumonia: Ch.20 Tuberculosis: Ch.23 No effective treatment for this infection currently exists. Antibiotics and antiviral drugs cannot kill the virus or prevent its replication. Interventions are supportive to allow the patient's own immune system to fight the infection. Vaccinations for the prevention of influenza are widely available. The vaccine is changed every year on the basis of which specific viral strains are most likely to pose a problem during the influenza season (i.e., late fall and winter) Inhalation and respiratory medications including terbutalin (Brehtaire) bronchodilator: indications and side effects. Confirmed lab / diagnostic test for the resolution of pneumonia. Management and pharmacotherapy for TB: side effects of medications Course of TB treatment and side effects of drugs used for TB (INH, Rifampin, PZA, …etc). Clinical manifestations of pneumococcal pneumonia. Thoracentesis: preparation of a client and nursing care. Fundamental principles for the proper use of inhalers; patient teaching (fundamentals of nursing) Early signs and symptoms of Lung cancer. Adverse effects of Chemotherapy and Radiation therapy. Mycobacterium tuberculosis is a gram-positive, acid-fact bacillus that is usually spread person to person by airborne droplets produced by speaking and coughing PPD test reading: interpretation of reading, how to measure it, and how many times to be repeated Interpretation of PPD test results for patients who are immunocompromised such as with HIV/AIDS Confirmatory diagnostic study for Pulmonary TB: AFB sputum test collected early morning hours. TB is confirmed when the results of the 3 sputum specimens obtained on 3 consecutive days are positive. The time to stop/discontinue (D/C) the Airborne precautions (isolation w/ negative pressure) is done when the 3 specimens are negative (sputum for AFB). Patients who have received the BCG vaccine will have a positive Mantoux test. Another method for screening (such as a chest x-ray) will need to be used in determining whether the patient has a TB infection When clients have a CD4+ count below 200 cells/mm3, their PPD test results may be negative even when active tuberculosis (TB) is present, because they have too few cells to mount an immune response to the test. Therefore, airborne precautions should be used with any client who is immunocompromised and presents with symptoms of TB until TB is ruled out with other tests. To reduce antibiotic resistant tuberculosis, the patient must take multiple drugs for 2 to 6 months or longer. If patients need to be out of the negative-pressure room, they must wear a standard isolation mask to prevent exposure to others. Teach patients to cover the nose and mouth with a paper tissue every time they cough, sneeze, or produce sputum. If a person has a positive reaction to the TST, he or she should not be tested again because the sensitivity to tuberculin persists throughout life. Nurses Study Guide_Exam#1_NUR341 Topic Iggy ATI Review Book Key points & Presentations Exam #1 (Genetics, Cancer, Fluids and Electrolytes, ABGs, Respiratory system) and visitors must wear high-efficiency particulate air (HEPA) masks whenever entering the patient's room Generally, individuals positive for HIV should not receive live vaccines. Administration of inactivated influenza vaccine is recommended annually in all individuals positive for HIV. Live attenuated influenza vaccine was FDA approved in 2003 in an intranasal formulation but is contraindicated in individuals with immunocompromise. The varicella and MMR vaccines should not be administered to patients with severely symptomatic HIV infection. The OPV is no longer recommended for use in the United States despite its continued use in many other parts of the world. Instead, inactivated polio vaccine (IPV) is recommended and is safe for use in HIVpositive individuals. (2006, available at: www.cdc.gov Low-grade fever may indicate infection or acute rejection, so the patient should notify the health care provider immediately if the temperature is elevated. Patients require frequent follow-up visits with the transplant team; annual health care provider visits would not be sufficient. Home oxygen use is not an expectation after lung transplant. Shortness of breath should be reported Oxygen saturation would be expected to improve after a thoracentesis. Albuterol is a rapidly acting bronchodilator and is the first-line medication to reverse airway narrowing in acute asthma attacks. The other medications work more slowly. Patients with lung cancer are at risk for pneumonia. Therefore, they need to be vaccinated for influenza vaccine (annually) and pneumococcal vaccine (every 5 yars). Pone important nursing preparation is to hold Bronchodilators before pulmonary function testing (PFT) so that a baseline assessment of airway function can be determined. Patients with COPD improve the mechanics of breathing by sitting up in the “tripod” position. Resting in bed with the head elevated would be an alternative position if the patient was confined to bed, but sitting in a chair allows better ventilation. A forced expiratory technique (huff coughing) clears secretions with less change in pleural pressure and less likelihood of bronchial collapse. Before coughing is initiated, ensure the patient is breathing deeply from the diaphragm. You should place hands on the lower lateral chest wall and then ask the patient to breathe deeply through the nose, and you should feel the hands move outward, which represents a breath from the diaphragm Good Luck