Hematology Oncology – Flashcards

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Delivery of oxygen equation
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DiO2 = Cardiac Output * Hgb *%Sat
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Next step (2) 1. Anterior rim/skin pallor 2. Syncope 3. Dyspnea on Exertion 4. Hgb <13
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Anemia 1. Mean Corpuscular Volume - Micro vs. Normo vs. Macro 2. Reticulocyte Index - Production (2%)
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Next step (4) 1. Anterior rim/skin pallor 2. DOE 3. Syncope 4. Hgb <13 5. MCV <80
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Microcytic Anemia Iron Studies: 1. Ferritin 2. Iron 3. TIBC 4. %Sat
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Destruction vs. Production Anemia test
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Reticulocyte Index 1. Increased Destruction >2% 2. Decreased Production <2%
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Causes of (4) 1. Anterior rim/Skin pallor 2. DOE 3. Syncope 4. Hgb <13 5. MCV <80
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Microcytic Anemia 1. Iron Deficiency Anemia 2. Anemia of Chronic Disease 3. Thalassemia 4. Sideroblastic Anemia
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Definition Macrocytic Anemia
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Cells are big
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Definition Megaloblastic Anemia
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Impaired DNA synthesis - 5+ lobes on PMN cells
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Next step 1. DOE 2. Anterior rim/skin pallor 3. Syncope 4. Hgb 100
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Macrocytic vs. Megaloblastic Anemia Blood Smear
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Next step 1. DOE 2. Anterior rim/skin pallor 3. Syncope 4. Hgb 100 6. Blood smear = >5 lobes PMN
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Megaloblastic Anemia 1. B12 levels 2. Folate levels
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Diagnosis 1. DOE 2. Anterior rim/skin pallor 3. Syncope 4. Hgb 100 6. Blood smear = >5 lobes on PMN 7. B12 and Folate levels equivocal 8. Methylmalonic Acid Elevated
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B12 Deficiency
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Diagnosis 1. DOE 2. Syncope 3. Anterior rim pallor 4. Hgb 100 6. Blood smear = >5 lobe PMN 7. Folate/B12 equivocal 8. MMA normal
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Folic acid deficiency
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Causes 1. DOE 2. Syncope 3. Anterior rim pallor 4. Hgb 100 6. Blood smear = <5 lobes PMN
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Nonmegaloblastic Macrocytic Anemia 1. Liver 2. EtOH 3. Drugs - chemo and retroviral (Zidovudine) 4. Metabolic - Leisch Nyhan
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Next step (5) 1. DOE 2. Syncope 3. Anterior rim pallor 4. Hgb <13 5. MCV = 80-100
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Normocytic Anemia 1. LDH 2. Haptoglobin 3. Total Bili 4. Direct Bili 5. Smear
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Diagnosis and Next Step 1. DOE 2. Anterior rim pallor 3. Syncope 4. Hgb <13 5. MCV = 80-100 6. LDH = Elevated, TBili = Elevated, Haptoglobin = Decreased
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Hemolysis Blood Smear
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Diagnosis and Next Step 1. Anterior Rim Pallor 2. DOE 3. Syncope 4. Hgb <13 5. MCV = 80-100 6. LDH = Normal, Haptoglobin = Normal, TBili = Normal
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Hemorrhage Find the hole Plug Give blood
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Causes (3) 1. Anterior Rim Pallor 2. DOE 3. Syncope 4. Hgb <13 5. MCV = 80-100 6. LDH = Normal, Hapto = Normal, TBili = Normal 7. Not bleeding 8. Reticulocyte Index <2%
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Normocytic Anemia Cancer - Leukemia, Myelodysplastic Syndrome Chronic Kidney Disease
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Pathology (3) and Time Frame 1. Anemia 2. MCV > 100 3. Blood smear = >5 lobes neutrophils 4. Folate levels low
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Folate deficiency Pathology: 1. Dec Leafy greens - Chronic Alcoholic, Old depressed person 2. Pregnancy Time Frame: 3-6 week store
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Treatment Chronic alcoholic 1. Hgb 100 3. Smear = >5 lobes on PMN 4. Folate low/equiv 5. MMA normal
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Folate deficiency 1mg PO folate
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Patient pathology (4) and Time Storage 1. Hgb 100 3. Smear = >5 lobes on PMN 4. B12 level low or equiv 5. MMA level high
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B12 Deficiency Pathology: Animal products 1. Strict uneducated long term vegan Absorption Problem: 2. Pernicious Anemia 3. Crohn's Disease 4. Gastric Bypass Time Span: 3-10 years storage
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Symptoms 1. Hgb 100 3. Smear >5 lobes/pmn 4. Low or equiv B12 5. High MMA
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B12 Deficiency Neuro symptoms: - Dorsal Column Medial Lemniscus 1. Two point discrimination 2. Proprioception - stomping foot, banging into things 3. Vibratory
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B12 is absorbed
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Terminal Ileum
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Treatment 1. Hgb 100 3. Smear >5 lobe PMN 4. Low B12 5. High MMA 6. IV B12 --> PO B12 --> Urine + for B12
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B12 Deficiency - Megalo Anemia Cause is: Strict uneducated vegan - PO B12
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Treatment 1. Hgb 100 3. Smear >5 lobes/pmn 4. Vit b12 low 5. MMA high 6. IV B12 --> PO B12 --> Urine negative for B12
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B12 Deficiency - Impaired Absorption Cause is: Gastric bypass, crohn's, pernicious anemia - IV B12
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Pathology and patient Hgb <13 MCV <80 Fe: Low Ferritin: Low TIBC: Elevated
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Iron Deficiency Anemia Pathology: Decreased Fe Patient: Slow bleeds 1. Old guy with colon cancer 2. Young woman with menometorrhagia *Not acute hemorrhage*
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Next possibly step Hgb <13 MCV <80 Fe: Low Ferritin: Low TIBC: Elevated
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Iron Deficiency Anemia Bone Marrow Biopsy *Don't need to do this if you have labs*
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Treatment (2) Hbg <13 MCV <80 Fe: Low Ferritin: Low TIBC: Elevated
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Iron Deficiency Anemia 1. Iron 324 mg 3x/Day 2. Stool softeners
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Pathology and Person (3) Hgb <13 MCV <80 Fe: Low Ferritin: High TIBC: Low
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Anemia of Chronic Inflammatory Disease Pathology: Inflammation Person: Chronic Autoinflammatory, asymptomatic, Hg >8
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Treatment (2) Hgb <13 MCV <80 Fe: Low Ferritin: High TIBC: Low
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Anemia of Chronic Inflammatory Disease 1. Nothing (don't need treatment for anemia just control disease) 2. Can use EPO
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Pathology and Patient Hgb<13 MCV <80 Fe: Normal Ferritin: Normal TIBC: Normal
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Thalassemia Pathology: Globin Thalassemia Minor - Asx Thalassemia Major - Transfusion dependent
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Alpha thalassemia mutations
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1 - asymptomatic (never see dont know have anemia) 2 - mild 3 - severe - transfusion dependent 4 - hydrops fetalis (never see - die)
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Beta thalassemia mutations
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1 - mild 2 - severe - constant transfusion
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Next step Hgb <13 MCV <80 Fe: Normal Ferritin: Normal TIBC: Normal
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Thalassemia Hgb Electrophoresis
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Treatment and Follow-Up Hgb <13 MCV <80 Fe: Normal Ferritin: Normal TIBC: Normal Hgb Electrophoresis: Increased A2Y2 (HgF) and A282 (HgA2)
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Beta Thalassemia Minor - Asx Major - Transfusion F/u: Iron overload Hemosiderosis: Deferoxamine, desafarox *Not phlebotomy*
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Pathology Hgb <13 MCV <80 Fe: Increased Ferritin: Doesn't matter TIBC: Doesn't matter Ringed sideroblasts (RBC with dark circle in it)
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Sideroblastic Anemia Path: Iron can't get out of mitochondria
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Causes (3) Reversible sideroblastic anemia
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Alcohol Drugs Lead
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Causes (2) Irreversible sideroblastic anemia
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B6 (pyridoxine) Deficiency (can't correct w/ B6) Myelodysplastic syndrome
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Hemolytic anemia labs
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Decreased haptoglobin Indirect hyperbilirubinemia
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Treatment (3) HbSS Hypoxia, infection, DKA, dehydration Acute pain
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Sickle cell acute crisis - oxidant stress IVF O2 Nsaids
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Treatment HbSS Hypoxia, infection Chest pain
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Sickle cell acute chest - also for priapism or ARDS Exchange transfusion *not cath*
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Vaccinations Autosomal Recessive African American Chronic Pain Anemia
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Sickle Cell Anemia 1. PCV 2. Meningococcus 3. H. flu 4. HBV
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Next step Autosomal Recessive African American HgSS Aseptic necrosis of hip or fever
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Sickle Cell Dexa Scan
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Complications Autosomal Recessive African American HgSS
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1. Vasoocclusive crisis 2. Splenic autoinfarction 3. Encapsulated organisms 4. Aseptic necrosis 5. Salmonella osteomyelitis
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Daily treatment sickle cell
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1. Daily folate 2. Daily iron 3. Hydroxyurea 4. Hydration 5. Analgesia
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Carrier state sickles ...
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1. Extreme conditions (mount everest) 2. Renal vein (increased risk for renal vein thrombosis)
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G6PD genetics
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x-linked genetic disorder
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Causes (5) Mediterranean man Hemolytic anemia
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G6PD Deficiency 1. Drugs - dapsone, primaquine 2. Infection 3. DKA 4. Foods - Fava beans
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Diagnose with (3) Mediterranean man Hemolytic anemia
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G6PD Deficiency Blood smear: 1. Heinz bodies (inclusions in RBC) 2. Bite cells G-6-PD level weeks after the attack (too soon might be artificially normal)
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Diagnose with Hgb <13 MCV 80-100 Decreased haptoglobin Increased indirect bilirubin Enlarged spleen Blood smear: Smooth, red, very round RBC Coombs test negative
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Hereditary spherocytosis Osmotic fragility test
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Treatment Hgb <13 MCV 80-100 Decreased haptoglobin Increased indirect bilirubin Enlarged spleen Smear: Smooth, red, very round RBC Coombs test negative
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Hereditary spherocytosis 1. Severe HS: Splenectomy 2. Chill HS: Folate supplements
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Causes (2) Hgb <13 MCV 80-100 Decreased haptoglobin Increased indirect bilirubin Cough, fever, chills Coombs test positive
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Cold Autoimmune hemolysis (IgM) 1. Mycoplasma 2. Mono
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Antibody produced Hgb < 13 MCV 80-100 Decreased haptoglobin Increased indirect bilirubin Cough fever chills Coombs test positive
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Cold autoimmune hemolysis IgM against RBC at cold temperatures
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Causes (5) Hgb < 13 MCV 80-100 Decreased haptoglobin Increased indirect bilirubin Pt with cancer Smear: smooth red very round rbc Osmotic fragility - Coombs test +
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Warm autoimmune anemia 1. Cancer 2. Autoimmune 3. Drugs - Penicillin, sulfa drugs, rifampin
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Treatment (3) Hgb < 13 MCV 80-100 Decreased haptoglobin Increased indirect bilirubin Pt with cancer Smear: smooth red very round rbc Osmotic fragility - Coombs test +
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Warm autoimmune anemia Treat like autoimmune disease: 1. Steroids 2. Acute: IVIg 3. Refractory: Splenectomy
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Cause Pt wake up with hematuria Abdominal pain: Venous thrombosis in intra-abdominal veins
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Paroxysmal Nocturnal Hematuria 1. PIG-A gene mutation 2. No GPI anchor (can't inhibit complement from fixation)
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Diagnose with (2) 1. Morning hematuria 2. Abdominal pain
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Paroxysmal Nocturnal Hematuria 1. Steroids 2. Flow cytometry
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Treatment (1) 1. Morning hematuria 2. Abdominal pain
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Paroxysmal nocturnal hematuria Anti-Ab Drugs: 1. Eculizumab
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Symptoms Acute leukemia
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1. Fever 2. Night sweats 3. Bleeding 4. Infection
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Cause Fever Night sweats Bleeding Bruising Petechiae Pallor Infection CBC: increase or decreased neutrophils Blasts on peripheral smear
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Acute myelogenous leukemia 1. Radiation 2. Benzene 3. Chemo 4. Transformation from other marrow cancers (CML, MDS)
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Next step Fever Bruising Bleeding Petechiae Pallor CBC: increase or decrease in neutrophils
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Acute myelogenous leukemia Blood smear - blasts
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Confirm diagnosis and requirement Bleeding Brusing Petechiae Fever CBC: increase or decrease in blasts Peripheral smear: blasts
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Acute myelogenous leukemia 1. Bone marrow biopsy = >20% blasts 2. Cytogenic analysis = neutrophils (myeloperoxidase)
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Auer rods
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Acute myelogenous leukemia - M3 type (promyelocytic)
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Treatment Fever Bruising Bleeding Petechiae Pallor CBC: increase or decrease neutrophils Peripheral smear: Blasts Cytogenic analysis: neutrophils (myeloperoxidase)
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Acute myelogenous leukemia 1. Idarubicin 2. Ara-C M3: Vitamin A
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MOA Treatment of Fever Bleeding Bruising Petechiae CBC: increase/decrease PMN Peripheral smear: Blasts, auer rods Cytogenic analysis: neutrophls
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AML: M3 type (promyelocytic) 1. Vitamin A: all-trans retinoic acid induced development of blasts
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Symptoms Acute lymphoid leukemia
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Pediatric patient (6 years old) Bleeding Bone pain
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Next step 6 year old Bleeding Bone pain
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Acute lymphoid leukemia Peripheral smear: blasts (20% blasts make diagnosis)
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Next step 6 year old Bleeding Bone pain Peripheral smear: blasts
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Acute lymphoid leukemia Bone marrow biopsy: >20% blasts Cytogenics
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Treatment 6 year old Bone pain Bleeding Peripheral smear: blasts Bone marrow biopsy: >20% blasts Cytogenics
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Acute lymphoid leukemia 1. Chemotherapy (cyclophosphamide, doxorubicin, vincristine, and methotrexate) 2. Intrathecal prophylactic chemo-radiation with Ara-C or methotrexate
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Gene associated with chronic myelogenous leukemia
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1. Philadelpha chromosome - 2. t(9,22) translocation 3. Overactivity of tyrosine kinase BCR-ABL
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Presentation Chronic myelogenous leukemia
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1. Elevated white count 2. Abnormal percentage of neutrophils (>60% WBC, >90% PMNs)
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Next step No symptoms Elevated WBC 60% WBC, 90% PMNs
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Chronic myelogenous leukemia Bone marrow biopsy
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Treatment No symptoms Elevated WBC 60% WBC, 90% PMNs Bone marrow biopsy t(9,22)
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Chronic myelogenous leukemia Imatinib
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Treatment Increase WBC Lymphocyte count >50 Bone marrow biopsy
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Chronic lymphoid leukemia Old: 1. NO symptoms: do nothing 2. Symptoms: chemo, fludarabine or rituximab-based Young <65: 1. Stem cell transplant
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Symptoms Lymphoma
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1. Nontender lymphadenopathy 2. Fever 3. Night sweats 4. Weight loss 5. Pel-Epstein fevers (come and go over weeks)
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Next step 1. Painless lymphadenopathy 2. Pel-Epstein Fever 3. Night sweats 4. Weight loss
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Possibly Lymphoma - Excisional biopsy 1. Lymph node biopsy 2. Reed-sternberg cells (abnormal B cells) *not Fine-Needle Aspiration*
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Next step 1. Pel-Epstein fever 2. Nontender lymphadenopathy 3. Weight loss 4. Night sweats 5. Excisional biopsy: Reed-Sternberg cells
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Hodgkin's Lymphoma Stage: 1. Chest X-ray 2. PET/CT of chest/ab/pelvis 3. Bone marrow biopsy
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Treatment 1. Pel-epstein fevers 2. night sweats 3. weight loss 4. Excisional biopsy: reed sternberg cells 5. Cxray, Pet/ct, Bone marrow biopsy
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Hodgkin's lymphoma ABVD: Adriamycin/Doxorubicin Bleomycin Vinblastine Dacarbazine
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Symptoms (5) Multiple myeloma
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1. Old 2. Weird fractures 3. Renal failure 4. Hypercalcemia 5. Increased protein gap
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Next step 1. Old 2. Weird fractures 3. Renal failure 4. Hypercalcemia 5. Elevated protein gap
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Multiple myeloma 1. Serum protein electrophoresis (Hgb electrophoresis) - M spike 2. Urine protein electrophoresis - Bence Jones
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Next steps (2) 1. Old 2. Weird fracture 3. Renal failure 4. Hypercalcemia 5. Elevated protein gap 6. Serum protein electrophoresis - M-spike 7. Urine protein electrophoresis - Bence Jones
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Multiple Myeloma 1. Bone Marrow Biopsy - >10% Plasmacytosis 2. Skeletal Survey - Lytic lesions *not a bone scan*
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Treatment 1. Old 2. Weird fracture 3. Hypercalcemia 4. Renal failure 5. Elevated protein gap 6. Spep - m spike 7. Upep - bence jones protein 8. Bone marrow - >10% plasmacytosis 9. Skeletal survey - lytic lesions
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Multiple Myeloma 1. >75: Just chemo 2. <75: Chemo and stem cell transplant (Melphalan + Prednisone and Thalidomide or Bortezomib)
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Symptoms Monoclonal Gammopathy of Uncertain Significance
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1. + SPEP - M spike 2. Negative bence jones 3. Negative lytic lesions 4. Negative renal failure 5. Negative hypercalcemia 6. Plasmacytosis <10%
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Symptoms Waldenstrom's Macroglobulinemia
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1. Peripheral Neuropathy 2. Hyperviscosity syndrome
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Cause 1. Peripheral neuropathy 2. Hyperviscosity syndrome
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Waldenstrom's Macroglobulinemia - Plasma cell secretes IgM
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Next step Peripheral neuropathy Hyperviscosity syndrome
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Waldenstrom's Macroglobulinemia 1. Spep: M-spike 2. Skeletal survey - no lytic lesions 3. Bone marrow biopsy - Lymphoplasmacytic lymphoma >10% of bone marrow
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Treatment 1. Hyperviscosity syndrome also has peripheral neuropathy
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Waldenstrom's Macroglobulinemia Plasmapheresis
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Treatment 1. Hyperviscoscity syndrome 2. Peripheral neuropathy 3. Spep - M-spike 4. Skeletal scan - no lytic lesion 5. Bone marrow biopsy - Lymphoplasmacytic lymphoma
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Waldenstrom's Macroglobulinemia 1. Rituximab
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