Chapter 42 Care of Patients with Hematologic Problems Marion Kreisel MSN, RN NU230 Adult Health 2 Fall 2011 Anemia • Reduction in either the number of red blood cells, the amount of hemoglobin, or the hematocrit • Clinical sign (not a specific disease); a manifestation of several abnormal conditions Cardiovascular Effects of Anemia Sickle Cell Disease • Genetic disorder resulting in chronic anemia, pain, disability, organ damage, increased risk for infection, and early death • Sickle cell disease state and sickle cell trait Sickle Cell Anemia Sickle Cell Disease: Pathophysiology • Main problem of the disorder is formation of abnormal hemoglobin chains Sickle Cell Disease (Cont’d) • • • • • Response to local or systemic hypoxia Sickle cell crisis Etiology and genetic risk Incidence/prevalence Patient assessment • KNOW ALL SLIDES ABOUT SICKLE CELL Sickle Cell Disease: Clinical Manifestations • • • • • • Cardiovascular changes Skin changes Abdominal changes Renal and urinary changes Musculoskeletal changes CNS changes Sickle Cell Disease: Laboratory Assessment • • • • • • • Hemoglobin S (HbS) Number of RBCs with permanent sickling Hematocrit Reticulocyte count Total bilirubin Total white blood cells Imaging assessment Sickle Cell Disease: Interventions • Pain is the most common problem: • Drug therapy—48 hours of IV analgesics • Oral hydration • Complementary and alternative therapies Sickle Cell Interventions: Potential for Sepsis • Interventions include: • Prevention and early detection strategies • Drug therapy Sickle Cell Disease Interventions: Potential for Multiple Organ Dysfunction • Interventions include: • Hydration • Oxygen therapy • Transfusion therapy Glucose-6-Phosphate Dehydrogenase (G6PD) Deficiency Anemia • Most common type of inherited hemolytic anemia • Effect of exposure to some drugs, benzene and other toxins • Screening for this deficiency necessary before donating blood, because cells deficient in G6PD can be hazardous • Hydration • Osmotic diuretics • Transfusions Iron Deficiency Anemia (Microcytic) • This common type of anemia can result from blood loss, poor intestinal absorption, or inadequate diet. • If mild—symptoms of weakness and pallor. • Evaluate adult patients for abnormal bleeding, especially from the GI tract. • Treatment—increasing oral intake of iron from food sources, oral iron supplements, or IM iron solutions. Vitamin B12 Deficiency Anemia (Macrocytic) • Lack of vitamin B12 causes improper DNA synthesis of RBCs. • Poor intake of foods containing vitamin B12, small bowel resection, tapeworm, overgrowth of intestinal bacteria. Pernicious Anemia • Anemia resulting from failure to absorb vitamin B12 • Caused by a deficiency of intrinsic factor • Pt will need B12 Vitamins for the rest of the patient’s life. Folic Acid Deficiency Anemia • Manifestations similar to those of vitamin B12 deficiency, but nervous system functions remain normal • Common causes—poor nutrition, malabsorption, and drugs Aplastic Anemia • Deficiency of circulating RBCs because of failure of the bone marrow to produce these cells • Injury to the pluripotent stem cell • Pancytopenia common • Treatment: • Blood transfusions • Immunosuppressive therapy • Splenectomy Polycythemia Vera—Cancer of the RBCs • Disease with a sustained increase in blood hemoglobin or hematocrit • Massive production of red blood cells • Excessive leukocyte production • Excessive production of platelets • Treatment: • Phlebotomy • Hydration • Anticoagulants Myelodysplastic Syndromes • Group of disorders caused by the formation of abnormal cells in the bone marrow • Blood and platelet transfusions • Erythropoietin • Chelation therapy • Drugs for iron overload—deferasirox and deferoxamine mesylate Leukemia • Type of cancer with uncontrolled production of immature white blood cells in the bone marrow • Acute or chronic • Classified by cell type • Etiology and genetic risk • Incidence/prevalence • History • Assessment Leukemia: Clinical Manifestations • • • • • • • Cardiovascular changes Respiratory changes Skin changes Intestinal changes Central nervous system changes Miscellaneous changes Fatigue Need to alternate periods of rest and activity Leukemia: Laboratory Assessment • Decreased hemoglobin and hematocrit levels • Low platelet count • Abnormal white blood cell count; may be low, normal, or elevated but is usually quite high • Bone marrow aspiration and biopsy • Blood-clotting times • Chromosome analysis • Imaging assessment Leukemia Interventions: Risk for Infections • Infection is a major cause of death in the patient with leukemia, and sepsis is a common complication. • Autocontamination • Cross-contamination • Drug therapy • Hematopoietic stem cell transplantation Bone Marrow Transplantation Hodgkin’s Lymphoma • Cancer that starts in a single lymph node or a single chain of nodes • Marker—Reed-Sternberg cell • Large, painless lymph node, usually in the neck, becomes painful when alcohol ingested; fever, drenching night sweats, and unexplained weight loss • Staging • Ann Arbor Staging Criteria Hodgkin’s Lymphoma: Interventions • • • • One of the most treatable types of cancer External radiation Chemotherapy Combination radiation and chemotherapy Non-Hodgkin’s Lymphoma • All lymphoid cancers that do not have the ReedSternberg cell • More than 12 types of non-Hodgkin’s lymphoma Non-Hodgkin’s Lymphoma: Collaborative Care • • • • • • • Chemotherapy Monoclonal antibodies Localized radiation therapy Radiolabeled antibodies Hematopoietic stem cell transplantation Vaccine therapy Proteasome inhibitors Multiple Myeloma • White blood cell cancer that involves a more mature lymphocyte called a plasma cell • Assessment • Interventions: • Chemotherapy • Autologous stem cell transplant • Analgesics • Alternative approaches for pain management • Bisphosphonates Autoimmune Thrombocytopenic Purpura • Also called idiopathic thrombocytopenic purpura (ITP). • Total number of circulating platelets is greatly reduced even though production in the bone marrow is normal. • Patients make an antibody directed against the surface of their own platelets. • Normal count 150,000-400,000/mm3 • Treatment is reserved for patients whose count is below 50, 0/mm3, those who are bleeding, and those who are at high risk for bleeding. • Transfusions are not done regularly b/c pt destroys them as if they were his/her own and back to ground zero. Thrombocytopenia Hemophilia (Cont’d) Hemophilia: Collaborative Care • Monitor for excessive bleeding from minor cuts, bruises, or abrasions. • Joint and muscle hemorrhages can lead to disabling long-term problems. • Tendency to bruise easily. • Prolonged and potentially fatal hemorrhage after surgery. Transfusion Therapy • Pretransfusion responsibilities to prevent adverse transfusion reactions: • Verify prescription. • Test donor’s and recipient’s blood for compatibility. • Examine blood bag for identification. • Check expiration date. • Inspect blood for discoloration, gas bubbles, or cloudiness. Transfusion Responsibilities • Provide patient education. • Assess vital signs. • Begin transfusion slowly, and stay with patient first 15 to 30 minutes. • Ask patient to report unusual sensations such as chills, shortness of breath, hives, or itching. • Administer blood product per protocol. • Assess for hyperkalemia. Transfusions Blood Grouping Types of Transfusions • • • • • Red blood cell Platelet Plasma—fresh frozen plasma Cryoprecipitate Granulocyte (white cell) Transfusion Reactions • • • • • • Febrile transfusion reactions Hemolytic transfusion reactions Allergic transfusion reactions Bacterial transfusion reactions Circulatory overload Transfusion-associated graft-versus-host disease Autologous Blood Transfusion • Collection and infusion of patient’s own blood • Eliminates compatibility problems; reduces risk for transmission of bloodborne disease • Types: • Preoperative • Acute normovolemic hemodilution • Intraoperative autologous transfusion • Postoperative blood salvage NCLEX TIME Question 1 What type of transfusion reaction would the patient who received multiple transfusions over the course of his cancer treatment most likely experience? A. B. C. D. Febrile Bacterial Allergic Hemolytic Question 2 How many people in the United States are estimated to have sickle cell disease? A. B. C. D. 30,000 50,000 70,000 100,000 Question 3 A 23-year-old African-American male with a history of sickle cell disease had an emergent open reduction and internal fixation of his right femur after a car crash. What is the initial postoperative nursing priority? A. B. C. D. Ensuring adequate IV hydration Treating the patient’s pain Titrating oxygen to an Spo2 >95% Examining the surgical incision for signs and symptoms of infection Question 4 A patient with glucose-6-phosphate dehydrogenase deficiency anemia is admitted with increasing fatigue, malaise, and jaundice. What priority question should the nurse ask the patient during the admission assessment? A. “When was your last hemolytic anemia crisis?” B. “How much fluid have you been able to drink in the past 24 hours?” C. “Have you taken any over-the-counter medications in the past week?” D. “Have you had a fever in the past 24 to 48 hours?” Question 5 What is a priority nursing intervention in the care of an older patient with a history of diverticular disease and pernicious anemia? A. B. C. D. Encouraging a diet high in vitamin B12 Preventing falls Turning the patient every 2 hours Monitoring intake and output