AH1-Chapter 31 Nursing Management of Hematologic Problems – Flashcards
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What type of anemia results from red blood cell destruction? Bleeding Hemolytic Hypoproliferative None of the above
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Hemolytic Bleeding results from red blood loss. Hemolytic anemia results from red blood cell destruction. Hypoproliferative anemia results from defective red blood cell production.
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True or False Leukocytosis refers to a decreased level of leukocytes in the circulation.
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False Leukocytosis refers to an increased level of leukocytes in the circulation. Leukopenia refers to a decreased level of leukocytes in the circulation.
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What should any elderly patient be evaluated for whose chief complaint is back pain and has an elevated total protein level? Anemia Leukemia Multiple myeloma Non-Hodgkin's lymphoma
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Multiple myeloma Any elderly patient whose chief complaint is back pain and has an elevated total protein level should be evaluated for possible myeloma.
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Hemolysis means:
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(blood rupturing) the rupturing of erythrocytes (red blood cells) and the release of their contents (hemoglobin) into surrounding fluid (e.g., blood plasma).
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When you think hemolytic, think:
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RBC destruction
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Leukocytosis refers to
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an increased level of leukocytes in the circulation.
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Leukopenia refers to
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a decreased level of leukocytes in the circulation.
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Normal Lab Values: WBC
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4500-11,000/mm³
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Normal Lab Values: Hemoglobin
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Male: 13-18 g/dL Female: 12-16 g/dL
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Normal Lab Values: Hematocrit
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Male: 42-52% Female: 35-47%
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Normal Lab Values: Iron
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Male: 75 to 175 g/dL Female: 65 to 165 g/dL
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Normal Lab Values: Platelet
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150,000- 450,000/mm³
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Kidneys and Blood Cell Production
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Think about: Renin - Angiotensin - Aldosterone System
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*Why the Renin-Angiotensin-Aldosterone System begins during heart failure:*
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Activation of the renin-angiotensin-aldosterone (RAA) system rapidly kicks in with heart failure. This is due to decreased renal perfusion caused by both a reduction in cardiac output and redistribution of blood away from nonessential organs --> this leads to the kidney starting to retain sodium and water in response to the perception of ineffective blood volume. The perception of decreased blood volume and the increase in sympathetic nervous activity --> stimulates renin release from the juxtaglomerular cells in the kidneys.
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Erythropoietin (EPO)
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is a hormone produced by the kidney that promotes the formation of red blood cells by the bone marrow. medication: Procrit (3 or so times/week)
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How is erythropoietin made?
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The kidney cells that make erythropoietin are specialized so that they are sensitive to low oxygen levels in the blood that travels through the kidney. These cells make and release erythropoietin when the oxygen level is too low. The low oxygen level may indicate anemia, a diminished number of red blood cells, or hemoglobin molecules that carry oxygen through the body.
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What exactly does erythropoietin (EPO) do?
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it stimulates the bone marrow to produce more red blood cells --> this rise in red blood cells increases the oxygen-carrying capacity of the blood.
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As the prime regulator of red cell production, erythropoietin's major functions are to:
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1. Promote the development of red blood cells. 2. Initiate the synthesis of hemoglobin, the molecule within red blood cells that transports oxygen.
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What medication are dialysis patients often placed on?
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Procrit r/t kidney malfunction and lack of erythropoietin production
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Damage to the kidney can lead to anemia how?
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it inhibits the kidney function and possibly inhibits its ability to produce erythropoietin. *medications (filtering of) and radiation can lead to kidney malfunction*
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Lymphoid cells
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T cells and B cells
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Myloid cells
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Erythrocytes Leukocytes Platelets
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How are RBC's described?
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by size and by amount of hemoglobin present. Size = "-cytic" Amount of hemoglobin = "-chromic"
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Reticulocyte Count Normal Range
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0.5 - 1.5 *The reticulocyte count is used to help determine if the bone marrow is responding adequately to the body's need for red blood cells (RBCs) and to help determine the cause of and classify different types of anemia.*
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Why does anemia take a few months to recover
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- RBC lifespan is 120 days - can give blood transfusion (very fast recovery) - erythropoietin (EPO) (Procrit)
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Erythrocyte Dx Tests
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Complete Blood Count RBC Hemoglobin (this is a biggie) Hematocrit (this is a biggie) MCV (mean corpuscular volume) MCHC (mean corpuscular hemoglobin concentration)
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What is Hemoglobin test
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- the measure of hemoglobin in the blood - the O2 carrying ability of the blood
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What is Hematocrit test
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the volume percentage (%) of red blood cells in blood.
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What is MCV (mean corpuscular volume)
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a measure of the average red blood cell
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What is MCHC (mean corpuscular hemoglobin concentration)
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a measure of the concentration of hemoglobin in a given volume of packed red blood cells
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Bone Marrow Aspiration and Biopsy
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Informed consent is REQUIRED! Major hazards: Bleeding and Infection
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Bone Marrow Aspiration Site
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*remember that bone marrow is a liquid and looks like blood*
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What are the Erythrocyte Disorders that we will cover?
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Anemia Polycythemia Vera
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What is Anemia
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- Decrease in quantity of RBCs and/or - an Abnormality in Hgb content - need to identify causative agent
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Anemia Signs and Symptoms
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- fatigue - thirst - cold - pale - mucous membranes pale - cap refill long - cyanosis - tachycardia (heart is trying to compensate for low O2) - dizziness (think safety - slow position change) - nausea - inceased respiratory rates - clubbing with chronic anemia - hair loss in periphery
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Anemia Tx Focus
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- Underlying disorder or causative agent - Symptom relief - transfusion (meds given during: lasix, benadryl, tylenol) - possible fluid volume overload r/t transfusion - transfusion given over long period of time (4 or so hrs/unit) - Procrit
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How much should the HCT increase with each unit of blood given?
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2-3 pts per unit *if there isn't an increase, think about a possible bleed or hemolytic disorder (spleen "eating" RBC's)*
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Anemia: Nursing Process - Assessment
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- Weakness, fatigue, general malaise - Pallor of skin and mucous membranes - Jaundice - Beefy red tongue - Medications (many meds, many side effects) - EtOH (hepatosplenomegaly)(hang banana bag) - Nutrition - Cardiac/GI/Neuro - Unusual cravings (PICA)(ice eating) - Females: Menstrual History (pads per day)
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Anemia: Nursing Process - Planning and Goals
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- Increased tolerance of normal activity - Attainment or maintenance of adequate nutrition - Maintenance of adequate tissue perfusion - Compliance with prescribed therapy - Absence of complications
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Anemia: Nursing Process - Interventions
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- Manage Fatigue - Maintain Adequate Nutrition - Maintain Adequate Perfusion - Comply with Prescribed Therapy - Monitor and Manage Potential Complications
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Types of Anemia
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- Aplastic - Iron Deficiency - Folic Acid Deficiency - Vitamin B12 Deficiency - Sickle Cell
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The differences in Anemia Treatment is
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- Not much difference between the types - biggest difference is the medications used to tx the deficiency
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Aplastic Anemia
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- Caused by decrease in or damage to marrow stem cells - toxic anemia - Neutropenia - wbc below 1500 - Thrombocytopenia - low platelets usu below 100k (can give transfusions - just platelets) - can give plasma to increase blood volume - Anemia = know relationship between HCT and Hgb (Hgb is usu 2-3 times HCT)
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Iron Deficiency Anemia
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- Intake of dietary iron is inadequate for hemoglobin synthesis - think Children and Pregnant women
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Clinical Management of Iron Deficiency Anemia
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- Stool specimens for occult blood - Colonoscopy or endoscopy (check for bleeding) - Iron supplementation: Dietary and Medication - usually give meds r/t not enough intake in diet
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Iron Supplements
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- causes constipation - usu on supplemental bowel regiment - stool softener, miralax, lots of liquids - causes tarry stool (can through off hemoccult) - drink through a straw (if liquid) - don't drink with milk - Vit C increases absorption - take on empty stomach
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Folic Acid Deficiency
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- Folic acid stored as different compounds called folates - pregnant women - multivitamins have high folic acid level - children = neural tube deficit --> spina bifida
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Normal Range for Folic Acid
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2.5 - 20 ng/mL
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Vitamin B12 Deficiency Pernicious Anemia
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- r/t faulty absorption in GI tract: (crohn's disease, gastrectomy, ileal resection) - dietary deficiency is rare but can develop in strict vegetarians - high cases of this in gastric bypass - probably the most common type of anemia seen - Tx: B-12 is given IM
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What are normal B-12 Levels
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200-900 pg/mL
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Sickle Cell Anemia
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- Hgb molecule is defective - disk shape of cell becomes deformed, rigid and sickle shaped --> can cause damage to vessel walls - pt will c/o pain in certain parts of the body
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Sickle Cell Anemia Tx
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- transfusions - tx symptoms/pain if refuse blood transfusion - possible genetic therapy - protects against malaria - shortened life expectancy
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Sickle Cell Anemia Signs/Symptoms
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- anemia (7-10 hgb) - jaundice - liver trying to get rid of damaged cells and build up in liver decreases fnxn - tachycardia (compensation) - cardiac murmurs - thrombosis - abn cells stick together and clot, cause pain, need blood thinner - infections - WBC might not fnxn corrctly r/t irregular WBC related to malformation - avascular necrosis (often in hip) - stroke - death
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Sickle Cell Anemia - Sickle Cell Crisis
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- Sickle Cell Crisis - Acute Chest Syndrome - get fluids, O2 and pain meds - possibly blood transfusion - think dehydration --> thickens blood --> leads to crisis - affects developmental mile stones in children - Clinical Management: Bone Marrow Transplant, Hydroxyurea, RBC transfusion
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Sickle Cell Crisis
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- intense pain because blood vessels can become blocked or the defective red blood cells can damage organs in the body. - assessment: determine the factor precipitating crisis - manage pain levels - all body systems must be assessed
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Sickle Cell Crisis Interventions
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- manage pain - preventing and managing infection - promote coping skills monitoring for potential complications can affect developmental milestones in children - pts can be at high risk for addiction r/t medications - hydroxyurea helps relieve pain - stem cells from umbilical stem cells can help with autotransfusion
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Sickle Cell Crisis Nursing Dx
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Based on the assessment data, major nursing diagnoses for the patient with sickle cell crisis may include: - Acute pain related to tissue hypoxia due to agglutina- tion of sickled cells within blood vessels - Risk for infection - Risk for powerlessness related to illness-induced helplessness - De?cient knowledge regarding sickle crisis prevention
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Sickle Cell Crisis Collaborative Problems/Potential Complications
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Based on the assessment data, potential complications may include: - Hypoxia, ischemia, infection, and poor wound healing leading to skin breakdown and ulcers - Dehydration - Cerebrovascular accident (CVA, brain attack, stroke) - Anemia - Acute and chronic renal failure - Heart failure, pulmonary hypertension, and acute chest syndrome - Impotence - Poor compliance - Substance abuse related to poorly managed chronic pain
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Hydroxyurea is
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- an antineoplastic drug - used to reduce the number of painful crisis in sickle cell anemia and decreased need for transfusions in adult patients with a history of recurrent moderate to severe crises -
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Hydroxyurea SE:
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nausea, vomiting, diarrhea, constipation, drowsiness
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Patient, while taking Hydroxyurea, should contact the doctor if what occurs?
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- rash, - purple/blue or black discoloration of the skin or nails - loss of feeling in one area of the body - sores on the skin or in the mouth - foul-smelling substance oozing from the skin - swelling of the hands/feet/ankles or lower legs
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Acute Chest Syndrome is:
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a noninfectious vaso-occlusive crisis of the pulmonary vasculature commonly seen in patients with sickle cell anemia. It is characterized by a new infiltrate on a chest x-ray.
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Acute Chest Syndrome Cause
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The crisis is often initiated by a lung infection, and the resulting inflammation and loss of oxygen tension leads to sickling of red cells and further vasoocclusion.
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Acute Chest Syndrome Symptoms
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The crisis is a common complication in sickle-cell patients and can be associated with one or more symptoms including fever, cough, sputum production, dyspnea, or hypoxia.
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Acute Chest Syndrome Treatment
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Broad spectrum antibiotics to cover common infections like strep pneumoniae and mycoplasma, Pain control, and Blood transfusion
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Polycythemia Vera Etiology:
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hyper-cellular bone marrow leading to elevated RBC, WBC, and platelets
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Polycythemia Vera Symptoms
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Symptoms result from increased blood volume and increased blood viscosity - headache - red faced - swollen veins - dizziness r/t too much blood
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Polycythemia Vera Treatment
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relies primarily on phlebotomy to reduce hematocrit - bleed them/ drain them (usually 1 or so a week or monthly)
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Hemostasis
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control of bleeding
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Platelets
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essential in control of bleeding
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Thrombocytopenia
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- a decrease in the number of circulating platelets - no aspirin, no blade razor shaving, no flossing, no contact sports
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Thrombocytopenia Etiology
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- Decreased production in bone marrow - Increased destruction of platelets (d/t antibodies) - Increased consumption (by the spleen)
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Vitamin K Deficiency leads to
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impaired synthesis of coagulation factors - can give Vit K PO or IM - IM to counter Warfarin
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Thrombocytosis
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- Increased number of platelets - Usually due to a stem cell disorder - risk of blood clots - Platelets are immature - Result of contributing diseases: Chronic Inflammatory Disorder, Iron Deficiency, Malignant Disease, Splenectomy - will be on some form of blood thinner
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White Blood Cell Disorders
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White blood cells are formed in the bone marrow and have as a primary function to recognize and fight micro-organisms.
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Neutropenia is
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a decrease in the number of neutrophils resulting in risk of infection - Neupagen - remember precautions: no flowers or fresh fruit or kids, etc
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Leukemia is
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- proliferation of one class of white blood cells - can be acute or chronic - Acute: sudden onset with poorly differentiated cells - Chronic: slow onset with well defined cells
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Symptoms of Leukemia
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- Pallor - Fatigue - Frequent infections - Bleeding, bruising - Bone pain (amped up bone marrow leads to pain) - Weight loss (cancer deprives body of nutrients)
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Leukemia Tx
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- chemotherapy - transfusion of bone marrow, stem cells, platelets - no radiation (can't radiate all of the body and the blood)
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Chronic Leukemia
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- usually seen in older adults (60's) - Cells are fully mature - Early on there are few symptoms - Later there is splenomegaly; hepatomegaly; lymphadenopathy
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Chronic Lymphocytic Leukemia
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- usually seen later in life - presents with anemia and thrombocytopenia - later it will present with fever; night sweats; and weight loss - Primary treatment is chemotherapy
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Gleevec is
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- antineoplastic/enzyme inhibitor - Inhibits kinases which may be produced by malignant cell lines - Inhibits production of malignant cell lines with decreased proliferation of leukemic cells
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Gleevec SE/AE
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- CNS: fatigue, headache, weakness. Resp: cough, dyspnea, epistaxis, nasopharyngitis, pneumonia. - GI: HEPATOTOXICITY, abdominal pain, anorexia, constipation, diarrhea, dyspepsia, nausea, vomiting. - Derm: petechiae, pruritus, skin rash. - F and E: edema (including pleural effusion, pericardial infusion, anasarca, superficial edema and fluid retention), hypokalemia. - Endo: hypothyroidism. - Hemat: BLEEDING, NEUTROPENIA, THROMBOCYTOPENIA. - Metabolic: weight gain. - MS: arthralgia, muscle cramps, musculoskeletal pain, myalgia. - Misc: fever, night sweats.
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Lymph System Roles
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- Maintain interstitial osmotic pressures - Absorb fat from the small intestine - Fight infection - Filter
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Lymph System Disorders
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- Hodgkin's Disease - Non-Hodgkin's Lymphoma - Multiple Myeloma
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Hodgkin's Disease
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- Cancer of lymphoid tissue - usually lymph nodes and spleen - interferes with the body's ability to fight infection - Diagnosed by presence of Reed Sternberg cells in tissue biopsy - The stage the disease is in dictates the treatment - usually seen in young males - early stages are fairly curable - later stages have worse prognosis - think lymph nodes are everywhere
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Hodgkin's Disease Tx:
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- can use born marrow transfusion - can use chemotherapy - can use radiation
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Non- Hodgkin's Lymphoma
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- Diffuse cancer of the lymphoid organs - Usually involves lymph nodes, liver, spleen, and bone marrow - Classification and ability to tolerate therapy determine treatment - usually in older patients - usually diagnosed at late stage --> more profuse spreading --> poor prognosis - B Symptoms: unintentional weight loss 10% or more, night sweat and fever - can spread to other organ systems r/t lymph system is systemic
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Non- Hodgkin's Lymphoma is classified by:
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the type of lymphocyte that it is affecting - B cell Lymphoma (most common) - T cell Lymphoma - described as indulent or aggressive
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Non- Hodgkin's Lymphoma symptoms
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- swollen lymph nodes - night sweats - fever - chills - fatigue - unexplained weight loss - facial swelling
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Multiple Myeloma
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- Disease of most mature B lymphocyte, plasma cell - Medium survival 3-5 years, no cure - Nonfunctional immunoglobulin Monoclonal or M protein - Back pain with possible lytic lesions - no cure --> mgt of symptoms - check protein levels - usually diagnosed by lytic lesions - Hypercalcemia, anemia, and renal failure
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What is also refered to as a Myeloma protein?
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- immunoglobulin - M Spike - Free light chains (Bence Jones)
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Multiple Myeloma Etiology
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- 3 times as common as leukemia - most common in patients around 60 or 70 - rarely see myeloma cells floating in the blood stream - usually confined to bone marrow - will show anemia r/t myeloma cells overtaking the space where RBC's are made and that leads to lower levels of RBC - causes erosion of the bone --> leads to lytic lesions and hypercalcemia - myeloma proteins fragment --> move to kidneys --> can cause renal insufficiency or failure
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Myeloma Acronym
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C - Calcium problems R - Renal problems A - Anemia B - Bone disorders
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Multiple Myeloma Tx
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- can be considered (for some pts) a chronic disease - treatment can sometimes consist of 6 or so lines of tx - high dose chemotherapy with bone marrow stem cell replacement - proteasome inhibitors (Bortezomib or Carfilzomib) - IMIDs (Thalidomide, Lenolidomide, Pomalidomide) - personalized medications (genomics)
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proteasome inhibitors (Bortezomib or Carfilzomib)
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- IM - as initial therapy or after progression; with melphalan and prednisone) - Inhibits proteasome, a regulator of intracellular protein catabolism, resulting in disruption of various intracellular processes - Leads to the death of rapidly replicating cells, particularly malignant ones
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IMIDs (Thalidomide, Lenolidomide, Pomalidomide)
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- PO - immunosuppressants - used with newly diagnosed multiple myeloma (with dexamethasone) - Inhibits secretion of pro-inflammatory cytokines and increases secretion of anti-inflammatory cytokines - Slows progression of multiple myeloma - may cause neutropenia or thrombocytpenia