Fluid Volume The human body is constantly trying to keep a balance of homeostasis with fluid and electrolytes. Fluid volume states Euvolemia Kidneys excrete 1 mL/kg/hr Skin Sensible- sweating Insensible- fever, exercise, and burns Lungs lose 300 mL/day Increased with higher respiratory rate Fluid Volume Deficit The loss of extracellular fluids exceeds the intake ration to water Causes Whole fluid loss- Vomiting, diarrhea, sweating, GI suctioning, hemorrhage Third spacing (burns, ascites) Excess diuresis- DI and adrenal insufficiency Not Dehydration Nursing Management Assess Skin turgor, oral mucosa, urine output, mental status Measure everything Treat Administer oral fluids Administer IV fluids Fluid Volume Excess Isotonic expansion of ECF caused by water and sodium retention Causes Excess salt consumption Excessive administration of sodium containing IV fluids Failure (heart, kidneys or liver) Nursing Managment Assess Daily weight, lung sounds, edema, I&Os, response to medications Treat Restrict fluid and sodium intake Promote rest Electrolytes Electrolytes are chemical compounds that break down into ions, carrying a positive or negative charge. When these are not in balance, pathological changes occur in the human body Sodium (Na+) Sodium (Na+) is the major component of extracellular fluid (ECF). The normal values are 135-145 mmol/L Na+ takes part in the regulation of acid-base balance, tissue osmolality and enzyme activity. Na+ is also essential for the retention of body water by maintaining osmotic pressure Electrolyte Imbalances: Hypernatremia Serum sodium > 145 mEq/L Causes include: • Dehydration • Decreased water intake • Over-administration of Na+ supplementation • Diuresis, or DI • Impaired renal function • Congestive heart failure • Cushing’s syndrome • Heat stroke Hypernatremia: Clinical Picture Nursing Management Treatment Hypotonic IV fluids Diuretics Monitor CNS changes Seizures Electrolyte Imbalances: Hyponatremia Hyponatremia: Clinical Picture Nursing Management Treatment Underlying condition Sodium replacement Water restriction Encourage dietary sodium Medication Monitor Patients taking Lithium or diuretics that could be the cause Chloride (Cl-) Chloride (Cl-) is another component of ECF, with normal values between 97-107 mmol/L. Cl- participates in tissue and cell osmolality, and passively follows sodium and water. Cl- is necessary for K+ retention, transport of carbon dioxide (CO2), and formation of hydrochloric acid (HCL) in the gastrointestinal tract. Cl- is usually provided in the form of NaCl or KCl Hyperchloremia Causes Excess NS infusion Head injury Dehydration Diarrhea Respiratory alkalosis Metabolic acidosis Hyperparathyroidism Hyperchloremia: Clinical Picture Tachypnea Lethargy, weakness Rapid, deep respirations HTN, edema Cognitive changes Nursing Management Treatment Restore fluid and electrolyte balance first Infuse Lactated Ringers Sodium Bicarbonate (IV) Diuretics Patient teaching about diet and hydration Hypochloremia Causes Reduced intake, GI loss (vomiting, diarrhea) Addison’s disease Ketoacidosis Excessive sweating, fever Burns Metabolic alkalosis Hypochloremia: Clinical picture Agitation and irritability Weakness Muscular hyperexcitability Dysrhythmias Seizures Coma Nursing Management Treat Normal Saline (IV) Avoid free water Encourage high chloride foods Potassium (K+) Potassium (K+) is the major component of intracellular fluid (ICF). The normal value range is 3.45.3 mmol/L. K+ participates in enzyme activity, regulation of tissue osmolality and glycogen use. K+ is also essential for cardiac function and central nervous system function by regulating muscle and nerve excitability Electrolyte Imbalances: Hyperkalemia Causes • Over-administration of potassium supplements • Metabolic acidosis • Renal failure • Potassium-sparing diuretics • ACE inhibitors, beta-blockers • Trauma/bruising/bleeding • Addison’s disease Hyperkalemia: Clinical Picture Nursing Management Treatment • Kayexalate • Calcium • Sodium Bicarbonate • Insulin and D50 • Dialysis • Limit dietary intake Monitor ECG, apical pulse I&Os Electrolyte Imbalances: Hypokalemia Serum potassium < 3.5 mEq/L Causes • Malnutrition, anorexia • Decreased K+ intake • Alcoholism • Vomiting, diarrhea, or gastric suctioning • Diuretics (except potassium sparing) • Acute renal failure • Steroids • Tumor of the intestines • Insulin overuse • Epinephrine, bronchodilators • Metabolic alkalosis (temporary) • Cushing’s syndrome Hypokalemia: Clinical Picture Nursing Management Treatment Potassium replacement (Dietary or po) IV potassium (only if adequate UO) Monitor ECG changes ABG changes Patients receiving Digitalis Patients receiving diuretics Magnesium (Mg2+) Magnesium (Mg2+) is found in the bone (50%), the ICF (45%), and the ECF (5%). The normal range is 1.33.0 mg/dL. Mg2+ affects enzyme activity, cardiac and neuromuscular function. Deficits with Mg2+ are usually seen with deficits in Ca2+ and/or K+ Electrolyte Imbalances: Hypermagnesia Causes • Over-administration of magnesium products (including antacids) • Renal insufficiency or injury • Renal failure • Extensive soft tissue injury • Severe dehydration (r/t hemoconcentration) • Ketoacidosis Hypermagnesia: Clinical Picture Nursing Management Treatment Calcium gluconate (IV) Loop diuretics IV fluids (NS or LR) Monitor Deep Tendon Reflexes Changes in LOC ECG Electrolyte Imbalances: Hypomagnesia Causes • Malnutrition or inadequate Mg2+ intake • Alcoholism • Chronic diarrhea • Diuretics • Rapid admin of citrated blood • Ketoacidosis • Acute myocardial failure • Metabolic acidosis • Aminoglycosides, digoxin Hypomagnesia: Clinical Picture Nursing Management Treatment Magnesium replacement (po or IV) Seizure precautions Monitor Dysphagia I&Os Calcium (Ca2+) Calcium (Ca2+) is another component of the ECF, but the majority is found in the bone. The normal values are 8.0-10.2 mg/dL. Ca2+ is essential in blood coagulation, endocrine functions, and neuromuscular function such as muscular contraction and nerve excitability. Ca2+ serum values may vary, depending on total serum albumin, as a relationship exists between the two. Electrolyte Imbalances: Hypercalcemia Causes • Over-administration of calcium supplements • Renal impairment • Thiazide diuretics • Bone fractures or prolonged immobility • Malignancy • Hyperparathyroidism • Steroids • Hypophosphatemia Hypercalcemia: Clinical Picture Nursing Management Treatment Increase fluid intake (po and IV) Loop diuretics Phosphorous supplements Increase fiber intake Monitor Safety I&Os Electrolyte Imbalances: Hypocalcemia Causes • Dietary deficiencies of calcium, protein, and/or vitamin D • Malabsorption • Osteoporosis • Transfusion of citrated blood • Low albumin • Renal failure • Hypoparathyroid • Alkalosis Hypocalcemia: Clinical Picture Nursing Management Treatment Calcium replacement (po) with Vitamin D Calcium gluconate (IV) Exercise to decrease bone calcium loss Seizure precautions Phosphorus (P+) Phosphorus (P+) is found in the bone and the ICF. The normal range of values is 2.5-4.5 mg/dL. P+ plays a role in neuromuscular function, formation of bones and teeth, body metabolism of nutrients, and forming and storing of energy such as ATP. Electrolyte Imbalances: Hyperphosphatemia Causes • Over-administration of phosphorus or Vitamin D supplements • Hypoparathyroidism • Renal insufficiency • Chemotherapy • Acidosis Hyperphosphatemia: Clinical Picture Nursing Management Treatment Vitamin D supplementation (po) Phosphate binding antacids Loop diuretics IV fluids Dialysis Monitor Dietary (phosphate high foods) Signs of hypocalcemia Electrolyte Imbalances: Hypophosphatemia Hypophosphatemia may be caused by: • Ketoacidosis • Burns, heat stroke • Respiratory alkalosis • Hyperventilation • Antacids containing aluminum • Malnutrition, anorexia • Alcoholism • Total parenteral nutrition (TPN) • Vomiting, diarrhea • Malabsorption • Hyperparathyroidism • Refeeding after starvation • Hepatic encephalopathy Hypophosphatemia: Clinical Picture Nursing Management Treatment Phosphorous replacement (po or IV) Encourage increased dietary intake Monitor Safety In addition to electrolytes, there are other laboratory tests that are included in a complete metabolic panel. This combination of analyses can assist in providing additional information about renal and hepatic function. Creatinine & BUN Creatinine is a non-protein waste product of creatine phosphate metabolism by skeletal muscle tissue Dependent on the Glomerular Filtration Rate (GFR). Adult males: 0.8 - 1.4 mg/dl Adult females: 0.6 - 1.1 mg/dl Children: 0.2 - 1.0 mg/dl • BUN is affected by hydration, hepatic metabolism of protein and reduced GFR. The mean ratio of serum creatinine to the BUN should be approximately 1:10 Elevated Creatinine Causes Impaired renal function Chronic nephritis Urinary tract obstruction Muscle diseases such as gigantism, acromegaly, and myasthenia gravis Congestive heart failure Shock Medications Elevated Creatinine: Clinical picture Fatigue Confusion, weakness, thirst Shortness of breath Nausea Vomiting Dry skin Edema Headaches Loss of appetite Weight loss Itchy skin Dark colored urine Oliguria or anuria Nursing Management Treatment BP management Glucose management IV fluids or Diuretics depending on cause Dietary teaching Dialysis if severe Monitor I&Os Daily weights Electrolyte values Decreased Creatinine Causes Age Decreased muscle mass Inadequate dietary protein Muscle atrophy Liver Function Tests ALT- an enzyme found mostly in the cells of the liver and kidney. AST- In most types of liver disease, the ALT level is higher than AST and the AST/ALT ratio will be low (less than 1). Bilirubin- a waste product primarily produced by the normal breakdown of heme. Alk Phos- This test is often used to detect blocked bile ducts because ALP is especially high in the edges of cells that join to form bile ducts. Pancreatic Enzymes Amylase- the pancreatic and salivary gland enzyme responsible for digesting carbohydrates Lipase- the pancreatic enzyme that, along with bile from the liver, digests fats Pancreatitis Pancreatitis occurs when digestive enzymes become activated while still in the pancreas, irritating the cells of your pancreas and causing inflammation. Causes can include: Alcoholism Gallstones Abdominal surgery Certain medications Cigarette smoking Cystic fibrosis Family history of pancreatitis Hypercalcemia, which may be caused by hyperparathyroidism Hypertriglyceridemia Infection Injury to the abdomen Pancreatic cancer Endoscopic retrograde cholangiopancreatography (ERCP) Pancreatitis: Clinical Picture Upper abdominal pain Abdominal pain that radiates to your back Abdominal pain that feels worse after eating Fever Rapid pulse Nausea Vomiting Tenderness when touching the abdomen Nursing Management Treatments Gut Rest Pain meds Fluids, TPN ERCP Pancreatic enzymes Jejunal feeding Thyroid Panel T4- high free T4 results may indicate an overactive thyroid gland, and low free T4 results may indicate an underactive thyroid gland TSH- produced by the pituitary gland. It is part of the feedback system to maintain stable amounts of T4 & T3 in the blood and to help control the rate at which the body uses energy. Hypothyroidism Causes autoimmune disease treatment for hyperthyroidism radiation therapy thyroid surgery certain medications (i.e. Lithium) Pregnancy Iodine deficiency Hypothyroidism: Clinical Picture Myxedema: Clinical Picture Nursing Management Treatments Medication (Levothyroid, Synthroid) Dietary modifications Supportive measures Hyperthyroidism Hyperthyroidism can accelerate your body's metabolism significantly by producing too much thyroxine. Causes Graves' disease toxic adenoma Plummer's disease (toxic multinodular goiter) thyroiditis Hyperthyroidism: Clinical Picture Nursing Management Treatments • Radioactive Iodine • Medications (propylthiouracil and methimazole (Tapazole)) • Surgery (Thyroidectomy) • Symptom control (Beta Blockers) • Eye Surgery (only for those who develop Graves’ Opthamopathy) Glucose Glucose is a monosaccharide, or a simple sugar, which is a product of cellulose, starch and glycogen. Free glucose occurs in the blood and is the primary source of energy for use in tissues of the body. The normal range is 60-200 mg/dL (non-fasting). Excess glucose is stored as glycogen in the liver or muscle tissue. Hyperglycemia Hyperglycemia occurs with a blood glucose greater than 200 mg/dL non-fasting, or a fasting blood glucose >100 mg/dL. Causes • Diabetes mellitus • Hyperosmolar nonketotic syndrome (HNKS) • Cushing's syndrome • Increased epinephrine levels from extreme stress (illness, trauma, surgery • Excess growth hormone secretion • Over-administration of glucose • Pregnancy (gestational diabetes) • Medications- particularly steroids Hyperglycemia: Clinical Picture Nursing Management Treatment increased fluids insulin administration Dietary modification Hypoglycemia Hypoglycemia: Clinical Picture Nursing Management Treatment Provide glucose and carbohydrates (po) Dextrose (IV) Symptom management Serum Albumin Albumin is a large protein found in the blood plasma that maintains the osmotic pressure between the blood vessels and tissue (preventing a leak of the blood from the blood vessels). It is also used to determine liver function, kidney function, and nutrition. The normal range for serum albumin is 3.5-4.8 g/dL. Hypoalbuminemia Hypoalbuminemia occurs with a serum albumin <3.5 g/dL. Causes • Poor nutrition • Liver disease • Impaired renal function • Burns • Lymphatic disease or cancer • Congestive heart failure • Inflammatory process Treatment Solve underlying problem Protein supplementation and nutrition support Hypoalbuminemia: Clinical Picture Hyperalbuminemia Hyperalbuminemia occurs with a serum albumin >4.8 g/dL. Causes may include: • Dehydration (abrupt) • Liver disease • Impaired renal function • Tuberculosis • An overdose of cortisone drugs The clinical picture will depending on the cause of the condition (liver ailment, kidney disease, etc.) Treatment is aimed at solving the underlying problem. Cardiac Biomarkers Troponin I- most specific of the cardiac markers. It is elevated (positive) within a few hours of heart damage and remains elevated for up to two weeks. CK-MB- bound combination of two variants (isoenzymes CKM and CKB) of the enzyme phosphocreatine kinase BNP- It is primarily used to help detect, diagnose, and evaluate the severity of heart failure. Chemistry Panel: Case Study #1 A 22 year old male patient is brought in via ambulance after being found unresponsive at home. He is difficult to arouse and unable to answer questions. He appears thin, and has poor skin turgor. BP is 100/60, HR 100, RR 16, T 99.2F. The EMS unit started an IV with normal saline, and was unable to obtain a blood glucose reading. The first attempt at arterial blood gas is unsuccessful. • Sodium (Na+) • Potassium (K+) • Chloride (Cl-) • Magnesium (Mg2+) • Calcium (Ca2+) • Phosphorus (P+) • Glucose • Creatinine 150 mmol/L 5.1 mmol/L 108 mmol/L 2.6 mg/dL 9.2 mg/dL 4.2 mg/dL 987 mg/dL 1.7 mg/dL Chemistry Panel: Case Study #2 A 45 year old female patient, complaining of steady right upper quadrant pain. BP is 138/98, HR 102, RR 14, T 98.9F. She has been experiencing nausea and vomiting x 24 hours. She has poor skin turgor, and you note scleral icterus. Her abdomen is non-distended but very painful to touch. She rates her pain as a 10/10. • Sodium (Na+) • Potassium (K+) • Chloride (Cl-) • Magnesium (Mg2+) • Calcium (Ca2+) • Phosphorus (P+) • Glucose • Serum albumin • Amylase • Serum Creatinine • BUN • Alkaline Phos • Protein • Bilirubin 147 mmol/L 2.9 mmol/L 100 mmol/L 1.4 mg/dL 9.2 mg/dL 2.3 mg/dL 188 mg/dL 3.0 g/dL 185 unit/L 0.5 mg/dL 15 mg/dL 155 unit/L 8.6 g/dL 3.5 mg/dL ABGs pH- the acidity or alkalinity of a substance paO2- the amount of circulating oxygenated blood paCO2- the amount of retained CO2 in the blood. In a healthy adult, the paCO2 should remain in an inverse relationship with the pH HCO3- Used by the kidneys to eliminate acids in the urine and blood. Acid-base changes due to increases or decreases in HCO3concentration occur more slowly than changes in CO2, taking hours or days Base Excess/Deficit- A calculated number that represents a sum total of the metabolic buffering agents (anions) in the blood. Anions are regulated to compensate for imbalances in blood pH. Metabolic Acidosis Low pH, low bicarbonate Most commonly due to kidney injury Clinical picture Headache, confusion, drowsiness Increased RR hypotension, decreased CO, dysrhythmias, shock Treatment Correct underlying problem Metabolic Alkalosis High pH, High bicarbonate Most commonly due to vomiting, GI suctioning, or diuretic overuse Clinical picture Decreased calcium and potassium symptoms Respiratory depression Tachycardia Treatment Correct underlying disorder IV fluids with chloride Respiratory Acidosis Low pH, High pCO2 Always due to respiratory issues with inadequate excretion of CO2 Clinical picture Suddenly increased pulse, RR, and BP Mental status changes A feeling of fullness in the pts head Treatment Address the underlying problem first Improve ventilation Monitor Signs of increased ICP Respiratory Alkalosis High pH, Low pCO2 Always due to hyperventilation Clinical picture Lightheadedness, inability to concentrate Numbness and tingling Can lead to loss of consciousness if severe Treatment Correct cause of hyperventilation (anxiety, asthma attack, etc.) ABG Interpretation ABG Imbalances ABG Interpretation CBC Overview A typical adult circulates about 5 L of blood, which is comprised of 3 L plasma and 2 L of blood cells. White blood cells (leukocytes), red blood cells (erythrocytes), and platelets (thrombocytes) are all created in the bone marrow. CBC results can be affected by the time of day, hydration, medications, and other blood values. Complete Blood Count Tests included in a CBC include: • Red blood cell count (RBC) • Hematocrit (Hct) • Hemoglobin (Hb or Hgb) • Red blood cell components, such as mean corpuscular volume (MCV), mean corpuscular hemoglobin (MCH), and mean corpuscular hemoglobin concentration (MCHC) • White blood count (WBC) • A differential white blood cell count (diff) • Platelets Red Blood Cells The primary purpose of RBCs, or erythrocytes, is to carry oxygen from the lungs to body tissues and to transfer carbon dioxide from the tissues to the lungs. Oxygen transfer occurs via the hemoglobin contained in the RBCs, which combines with oxygen and carbon dioxide. Normal red blood cells values are: • Adults: (males): 4.6-6.0 million/uL • (Females): 4.2-5.0 million/uL • Pregnancy: slightly lower than normal adult values The average range of values for RBC is 4-5.9 million/uL. Hemoglobin Hemoglobin (Hgb) is a molecule comprised of an iron-containing pigment (heme) and a protein (globulin). The ability of blood to carry oxygen is directly proportional to its hemoglobin concentration. The number of RBCs may not accurately reveal the blood's oxygen content because some cells may contain more hemoglobin than others. • Normal hemoglobin values are: • Adult: (males): 13.5 - 17 g/dl • (Females): 12 - 15 g/dl • Pregnancy: 11 - 12 g/dl The average range of values for hemoglobin is 12-17.5 g/dL. Critical values include: • A hemoglobin < 5 g/dl can cause heart failure • A hemoglobin > 20 g/dl can cause hemoconcentration and clotting Hematocrit The hematocrit (Hct) determines the percentage of red blood cells in the plasma. It is calculated when a blood sample is spun down, and the red blood cells sink to the bottom of the sample. • Normal hematocrit values are: • Adults: (males): 40- 54% • (Females): 37 – 46% • Pregnancy: decreased hematocrit, especially in the last trimester as plasma volume increases The average range of values for hematocrit is 37-54% Critical values include: • A hematocrit <15% can cause cardiac failure • A hematocrit >60% can cause spontaneous blood clotting MCV, MCH, and MCHC Mean corpuscular volume (MCV)- the average size of individual red blood cells, calculated by dividing the hematocrit by the total RBCs. Mean corpuscular hemoglobin (MCH)- the mass of the hemoglobinin an RBC, calculated by dividing the hemoglobin by the total RBCs. Mean corpuscular hemoglobin concentration (MCHC)- how much of each cell is taken up by hemoglobin. The calculation is the hemoglobin divided by the hematocrit and multiplied by 100. The MCV, MCH, and MCHC can assist in identification and diagnoses of disease processes. Polycythemia An increase in the number of red blood cells is known as polycythemia. Causes • High altitudes • Strenuous physical activity • Medications, such as gentamicin and methyldopa • Smoking • Hydration • Polycythemia vera • COPD • Chronic hypoxia Polycythemia: Clinical Picture Nursing Management Treatment Address the underlying cause Therapeutic Phlebotomy Anemia Anemia Panel Includes CBC Ferritin Folates Total Iron Binding Capacity with Iron (TIBC) Reticulocyte Count Vitamin B12 Folic Acid Anemia: Clinical Picture Fatigue Low energy Weakness Shortness of breath Dizziness Palpitations Pallor Chest pain Tachycardia Hypotension Fainting Nursing Management Treatment Address the underlying cause, and is dependent on severity. Iron and B12 supplementation is used. PRBC transfusions Healthy, symptomatic adult, not actively bleeding Hgb <7 Actively bleeding and symptomatic may transfuse earlier Transfusion Reactions Hemolytic Blood type or Rh incompatibility Reaction related to antibodies against patient’s blood Destroys transfused cells Mild to life threatening Immediate or after several units infused Allergic Sensitive to antibodies in donor blood During or up to 24 hrs post transfusion Febrile Non specific and most common Development of Anti -WBCs after several tx Bacterial Contaminated Blood products Transfusion Reaction: Clinical Pictures Hemolytic Apprehension/ Impending Doom HA, CP, Low back pain, N/V Increased HR and RR Hypotension Hematuria and decreased UO Allergic Fever, urticaria, bronchospasm Occasional anaphylaxis Febrile Sensations of cold, tachycardia, tachypnea, Fever, and Hypotension Bacterial Tachycardia, hypotension, fever Chills and Shock Nursing Management General Treatment Stop the transfusion Benadryl airway management Buffy coat Leukocyte filters Bacterial Treatment Only Blood culture, Antibiotic Therapy, Fluid resuscitation Vasopressors, Corticosteroids White Blood Cells White blood cells (WBC), or leukocytes, are classified into granulocytes (which include neutrophils, eosinophils, and basophils) and agranulocytes (which include lymphocytes and monocytes). WBC are released from the bone marrow and destroyed in the lymphatic system after 14-21 days. Leukocytes fight infection through phagocytosis, where the cells surround and destroy foreign organisms. White blood cells also supply antibodies as part of the body's immune response. The average range of values for WBC is 4-10 thousand/uL. WBC critical lab values include: • A WBC <500 places the patient at risk for a fatal infection. • A WBC >30,000 indicates massive infection or serious disease (e.g. leukemia) WBC Differential Leukocytosis WBC > 10,000. Causes • Trauma • Inflammation • Acute infection • Dehydration • Hemoconcentration • Cancer, such as leukemia • Medications, such as corticosteroids Leukocytosis: Clinical Picture & Treatment • Fatigue • Hepatomegaly • Splenomegaly • Bleeding • Bruising or petechiae Treatment is focused on the underlying cause, and is dependent on severity. Leukopenia WBC < 4,000. Causes Bone marrow disorders Viral infections Severe bacterial infections Cancer Medications, include chemotherapy, antibiotics, anticonvulsants, and some cardiac medications Leukopenia: Clinical Picture & Treatment • Headache • Fatigue • Fever • Bleeding Treatment is focused on the underlying cause, and dependent on severity. Steroids, vitamins, and cytokines can be used Leukopenic/ Neutropenic Precautions Platelets Platelets are fragments of cells that are formed in the bone marrow, and are vital to blood clotting. Platelets live for approximately 9 to 12 days in the bloodstream. The average range of values for platelets is 150,000 and 399,000/mm³. Vitamin K Serves as an essential cofactor for clotting Proteins dependent on Vitamin K levels factors II (prothrombin), VII, IX and X proteins C, S and Z osteocalcin and matrix-Gla protein, and certain ribosomal proteins Deficiency of Vitamin K can result in hemorrhagic disease Also used as a reversal agent Coagulation Studies PT/INR- helps evaluate a person's ability to appropriately form blood clots PT Range 11 – 12.5 seconds INR Range 0.7 - 1.8. (Coumadin Range 2 – 3) PTT- measures the number of seconds it takes for a clot to form in a person's sample of blood after substances (reagents) are added PTT range 30 – 40 seconds. If on anticoagulation, 1.5 to 2.5 times control Fibrinogen- a protein, a coagulation factor (factor I) that is essential for blood clot formation. D-Dimer- one of the protein fragments produced when a blood clot dissolves in the body. It is normally undetectable unless the body is forming and breaking down blood clots. Medication changes Unfractionated heparin therapy Thrombosis prevention Maintain therapeutic aPTT Heparin-induced thrombocytopenia Low-molecular-weight heparin therapy-Lovenox Warfarin (Coumadin) therapy Impact of vitamin K INR Dabigatran (Pradaxa) therapy Bleeding disorders Secondary thrombocytosis Essential Thrombocytopenia Immune thrombocytopenic purpura (ITP) Platelet defects Hemophilia von Willebrand disease Secondary Thrombocytosis Thrombocytosis: Clinical Picture • Dizziness • Headache • Chest pain • Weakness • Neuropathy • Vision changes • Fainting Treatment is focused on the underlying cause Limit injury, and place on bleeding precautions Thrombocytopenia Thrombocytopenia occurs when the platelet count is <150,000, placing the patient at a high risk for bleeding due to injury or disease. A platelet count <20,000 can cause spontaneous bleeding that may result in patient death. Some causes of thrombocytopenia include: Decreased platelet production-chemo Increased platelet destruction-infection Increased platelet consumption-DIC Thrombocytopenia: Clinical Picture • Easy bruising, petechiae or bleeding • Hematuria • Black, tar-like stools or frank bleeding with bowel movements • Hematemesis • Syncope • Visual disturbances Treatment is focused on the underlying cause, and dependent on severity. Platelet transfusions may be used with severe thrombocytopenia. Immune Thrombocytopenic Purpura Autoimmune disorder characterized by destruction of normal platelets by an unknown stimulus. Causes Viral illness like hepatitis and HIV may lead to ITP sulfa drugs, lupus, pregnancy ASA, NSAID’s alter platelet function Clinical picture Easy bruising, heavy menses, petechiae Nursing Management Treatment Only if less than 30,000 or extensive bleeding occurs Immunosupressive agents like Imuran (chronic) or Prednisone (acute) IVIG splenectomy Transfusions don’t help because the antibodies just kill the platelets Platelet Defects Quantitative platelet defects (i.e., thrombocytopenia, throm-bocytosis) are relatively common; however, qualitative defects can also occur. With qualitative defects, the number of platelets may be normal but the platelets do not function normally. Hemophilia Group of hereditary clotting factor disorders characterized by prolonged coagulation time that results in prolonged and sometimes excessive bleeding Hemophilia A and B are X-linked recessive traits Manifestations for both types Persistent and prolonged bleeding, hemarthrosis, ecchymosis, GI bleeding, UTI aPTT increased Hemophilia A Classic Hemophilia Lacks Factor VIII: Stabilizes fibrin clots Most common form (80%) Severity varies from mild to severe Transmitted as X linked recessive disorder from mothers to sons Treatment Cryoprecipitate containing 8 to 100 units of Factor VIII per bag 12 hour intervals until bleeding stops Freeze dried concentrate of Factor VIII may also be given Hemophilia B Christmas Disease Lacks Factor IX: Influences amount of thromboplastin available Also X-linked recessive trait Treatment Plasma or Factor IX concentrate given q 24 hours until bleeding ceases Von Willebrand’s Disease Lack of protein (vWF) that mediates platelet adhesion Necessary for Factor VIII activity Bleeding time is prolonged Often diagnosed after surgery or dental extraction when prolonged bleeding is indicated Treatment DDAVP Concentrate of vWF and Factor VIII Hemophilia: What is the difference? In clients with Hemophilia A and B, platelet plugs are formed at the site of bleeding, but clotting factor impairs coagulation response and capacity to form STABLE clot With Von Willebrands platelet plugs are difficult to form Nursing Management Treatment Teach avoidance of all aspirin products Application of cold, immobilization for 24 to 48 hours if hemarthrosis occurs Avoidance of injury Wearing MedicAlert bracelet Control bleeding through direct pressure, application of hemostatic agents, and ice Bleeding precautions Genetic counseling Acquired Coagulation Disorders Liver disease Antithrombin deficiency Vitamin K deficiency Protein C & S deficiency Complications of anticoagulant Activated protein C resistance therapy (HIT) Disseminated intravascular coagulation (DIC) Thrombotic disorders Hyperhomocysteinemia and factor V Leiden mutation Acquired thrombophilia Malignancy Disseminated Intravascular Coagulation (DIC) Causes DIC does not occur in isolation. A number of underlying conditions are responsible for initiating and propagating the process Sepsis Malignancy Trauma, especially to the central nervous system Obstetrical complications, including preeclampsia, retained dead fetus, acute fatty liver of pregnancy Intravascular hemolysis, often due to transfusion reaction DIC: Clinical Picture Nursing Management Treatments Treat underlying cause Aggressive Hydration Transfusion only for bleeding patients Supportive measures Monitor bleeding and tissue oxygenation Monitor I & O hourly Monitor for renal failure, PE, CVA, and ARDS CBC Values: Case Study #1 A 62 year old male patient, complaining of fatigue, dizziness, and bleeding from his gums. On assessment, you notice multiple bruises on upper and lower extremities, back and trunk. BP is 138/98, HR 88, RR 12, T 100.9F. • RBC • Hct • Hgb • WBC • Platelets 4.5 million/uL 40% 13.2 g/dL 2.9 thousand/uL 99 x 10³/mm³ CBC Values: Case Study #2 A 24 year old female, with a history of drug abuse. She is complaining of shortness of breath, dizziness, chest pain and palpitations. She appears pale and malnourished. BP 90/56, HR 106, RR 18, T 98.2F, O2 sat 89%. • RBC • Hct • Hgb • WBC • Platelets 3.3 million/uL 23% 9 g/dL 4.9 thousand/uL 199 x 10³/mm³ Urinalysis Direct visual observation Normal: clear and pale to amber Abnormal Cloudy Excess cellular material or protein Crystallization from standing at room temperature or refrigerator Red to reddish brown color Food dye, consumption of beets, a drug, the presence of hemoglobin (from the breakdown of blood), or myoglobin (from the breakdown of muscle) UA (cont.) Acid/Base (pH): 7.4-6 (acidic) Specific gravity: measures urine density 1.002-1.035 Below 1.007-1.010=hydration Above 1.007-1.010=dehydration Protein 150mg/24 hrs or 10mg/100ml Greater than 3.5gm/24 hrs indicates nephrotic syndrome Glucose Ketones-diabetic ketosis or starvation Nitrate-positive may indicate bacteria are present-typically gram negative rods (E.coli) Leukocyte Esterase-positive results from the presence of white blood cells (Infection) Microscopic RBC-hematuria Glomerular damage, tumors, kidney trauma, stones, ATN, infection, nephrotoxins, physical stress WBC-Pyuria Infection Epithelial cells High levels=nephrotic syndrome Lipiduria Bacteria Casts-Urinary casts may be made up of white blood cells, red blood cells, kidney cells, or substances such as protein or fat. Bacteria Yeast Crystals-can indicate liver impairment Hemodynamic Monitoring Nursing Care Hemodynamic Monitoring Complications Infection/Sepsis Infection at insertion site can occur if aseptic technique is not used. Treatment Change dressings per facility protocol and as needed. Use surgical aseptic technique with dressing changes (mask, sterile gloves, maintain sterile field). Perform thorough hand hygiene. Collect specimens (blood cultures, catheter tip cultures) and deliver to the laboratory. Administer antibiotic therapy as prescribed. Administer IV fluids for intravascular support. Administer vasopressors to correct vasodilation secondary to sepsis. Hemodynamic Monitoring Complications Embolism Plaque or a clot can become dislodged during the procedure. Risk of pneumothorax with insertion of the line. Risk of dysrhythmias with insertion/movement of the line. Hemodynamic Monitoring CVP Pulmonary artery pressure Swan-Ganz Intra-arterial BP monitoring Cardiac Output/Index Vigileo/EV1000 Central Venous Pressure Monitoring Measure of blood volume and venous return and reflects right heart filling pressures (preload) Catheter in the jugular or subclavian vein and distal end in superior vena cava – above right atrium. Monitors fluid volume status Normal CVP: 2 to 6 mmHg (ATI 1 to 8) Decreased CVP – hypovolemia, shock Increased CVP – fluid overload, vasoconstriction, cardiac tamponade Pulmonary Artery Pressure Monitoring Used to assess left ventricular function, diagnose the etiology of shock, and evaluate the patient’s response to medical interventions (e.g., fluid administration, vasoactive medications). Inserted into large vein (preferably subclavian) Serious complications include pulmonary artery rupture, pulmonary thromboembolism, pulmonary infarction, catheter kinking, dysrhythmias, and air embolism. Pulmonary Artery Catheter and Pressure Monitoring System Intra-arterial pressure monitoring Indwelling arterial line Allows direct and continuous monitoring of systolic, diastolic, and mean arterial blood pressure Easy access for arterial blood sampling Allen’s Test / Doppler Monitor for complications by frequently assessing pulse strength, perfusion and sensation distal to insertion site Allen’s Test Intra-arterial monitor set up EV1000/Vigileo References American Association for Clinical Chemistry. (2016). LabTestsOnline.Org. LeFever, J., Paulanka, B., & Polek, C. (2010). Handbook of fluid, electrolyte, and acid-base imbalances (3rd ed). Clifton Park, NY: Delmar Cengage Learning. Rush Medical University Center. (2012). Rush Medical Laboratory: Normal ranges for common laboratory tests. In Martindale’s: The Reference Desk. Retrieved January 2012 from http://www.martindalecenter.com/Reference_3_LabP.html Van Leeuwen, A.M., Poelhuis-Leth, D., & Bladh, M.L. (2011). Davis's comprehensive handbook of laboratory & diagnostic tests with nursing implications (4th ed). Philadelphia, PA: F.A. Davis Company. Warrell, D.A., Firth, J.D., & Cox, T.M. (eds). (2010). Oxford textbook of medicine (5th ed). Oxford, NY: Oxford University Press.