Heme Flashcards
CRAB: hyperCalcemia, Renal insufficency, Anemia and Bone/Back lesion pain. Dx?
Multiple Myeloma
What is Thrombocytosis?
Too many platelets
What is the Vitamin for Folate?
B9
What is RDW? Explain.
- Degree of variation in RBC size.
- Normal is <15% variation.
What does TIBC stand for?
Total Iron Binding Capacity
Explain importance of TIBC
Carton of eggs →
- If carton is full (high) of eggs (Fe), binding capacity is low
- If carton is empty (low), binding capacity is high
2 MC types of microcytic anemia
- Iron Deficiency Anemia
- Thalassemia
What is leukocytosis?
Too many WBCs
Pt. presents with headache, dizziness, pruritus after showering. He has HTN and splenomegaly. Dx?
Polycythemia Vera
Pt. was treated for iron deficiency anemia 6 weeks ago. Today she presents with normal values. What should be done next? Why?
- Check serum ferritin level
- It takes 4-6 mo to replenish so Rx should continue for a 4-6 mo.
Labs seen with Von Willebrand Disease (VWD):
Prolonged bleed time ± prolonged PTT
In what population of pts. must a PA be aggressive with spotting and treating anemia? Why?
- Elderly
- They won’t survive a large GI bleed.
What virus is Hodgkin’s associated with?
EBV
How do we know the difference of Iron Deficiency Anemia vs. Thalassemia?
- Iron studies
- Normal RDW (USE THIS ONE), Serum Fe, TIBC and serum Ferritin in Thalassemia.
MC presentation (color, size) of Anemia of Chronic Disease
Normocytic, Normochromic
How do we Tx Anemia of Chronic Disease?
Tx underlying cause
In a 45yo vs. 75 yo with B12 and Folate Deficiencies, what are the differences in presentation?
- Both: Unexplained weakness
- Younger: Paresthesias
- Elderly: Cognitive changes
How do we check/Dx B12 Deficiency?
- Dx: Serum cobalamin levels
- ↑ Serum Homocysteine
- ↑Methyl-Malonic Acid (MAA)
What presents with splenomegaly, gingival hyperplasia and Auer rods?
Acute Myelogenous Leukemia
RDW in Chronic (>3 mo) would show what and why?
- Normal at <15 % variation in size.
- All RBCs are small and don’t vary like they would in acute.
Tx for Polycythemia Vera
- Phlebotomy
- Hydroxyurea
- ASA
What is thrombocytopenia?
Low platelet count
What does it mean to have petechiae and purpura?
Bleeding under the skin.
-Many petechiae lead to purpura.
If Polys and Lymphs are numerically nearby, think _____
Viral infection
Reed-Sternberg Cell pathognomonic in:
Hodgkin’s
What is seen on x-ray for Multiple Myeloma?
Lytic lesions
Bariatric surgery is an RF for ____ D/T ____:
- Iron Deficiency Anemia
- ↓ iron absorption
Oral Tx for Lead poisoning
Succimer
Tx for Sickle Cell
Hydroxyurea
Painless supraclavicular or anterior cervical triangle lymph node mass. Sxs: F, night sweats, wt. loss. Dx?
Hodgkin’s
BEST Dx lab test for Thalassemia
Hemoglobin Electrophoresis
What does it mean infection-wise when the Monocytes are elevated?
Infection >24 hr bc that’s when Monos come out.
What iron is usually given Rx and why?
- Ferrous Sulfate
- GI issues with highest and too many pills to take with lowest.
MC gene in Polycythemia Vera
Janus kinase 2 gene (JAK2)
What is the expected duration to treat for B12 deficiency?
Usually life-long
Koilonychia is seen in:
Iron Deficiency Anemia
If Polys and Lymphs are numerically REALLY far apart, think _____
Bacterial infection
MC marker of Thrombotic Thrombocytopenic Purpura (TTP). High or low?
Severe ↓ ADAMTS13
What is seen in Protein electrophoresis of Multiple Myeloma?
Bence-Jones proteins
What is the name of B12?
Cobalamin
2 MC conditions associated with Eosinophils
- Allergic reactions
- Parasitic infections
What is seen on peripheral blood smear for Multiple Myeloma?
Rouleaux
Why is RDW normal in Thalassemia?
-There is no iron problem, the problem is making Hemoglobin.
What type of hemoglobin does hydroxyurea increase?
HbF (fetal hemoglobin)
What is the only vitamin deficiency to result in neuro symptoms?
B12 (Cobalamin)
What presents with splenomegaly and Philadelphia chromosome t(9;22)?
Chronic Myelogenous Leukemia (CML)
What makes a RBC red?
Hemoglobin
Tx for Primary Immune Thrombocytopenia
- Kids: observe ± IVIG (severe w/bleed)
- Adults: Steroids > IVIG; Platelets <20K - transfusion, splenectomy
Pt. on chemo presents with temp >101 F and neutrophil < 500. Dx?
Neutropenic Fever
An elderly pt. is being treat for Iron Deficiency Anemia. After 1 mo of Tx, her Hgb and Hct haven’t changed much. What is the next step? Why?
- Check Reticulocyte count
- To see if bone marrow is producing RBCs.
Peripheral smear: spherocytes and Howell-Jolly body. Dx?
Hereditary Spherocytosis
Hyperdense lines at metaphyses (“lead lines”) seen in:
Lead poisoning
How long does it take total WBC count to react to infection?
At least 12 hrs
- So polys and lymphs are already circulating in this time.
- Immunocompromised might not even show a difference.
↑ hemoglobin, ↑ RBC mass, leukocytosis, and thrombocytosis. Dx?
Polycythemia Vera
What does “chromic” mean in Anemia? What terms are used to differentiate?
- Color
- Hypo, normo, hyper
What is MCH?
RBC color AKA Hemoglobin content
What Dx is complicated by Minimal Change Disease?
Hodgkin’s lymphoma
Tx for Thrombotic Thrombocytopenic Purpura (TTP)
ASAP Plasma exchange + IV corticosteroids + Rituximab
What antipsychotic causes agranulocytosis (severely dangerous leukopenia/neutropenia)?
Clozapine
Tx for Tumor Lysis Syndrome
IVF + ER dialysis (with multiple electrolyte abnormalities)
How many days after chemo should nadir be in absolute neutrophil count?
7 days
Thrombocytopenia is usually the ONLY lab abnormality seen in:
Primary Immune Thrombocytopenia
What labs are seen in Aplastic Crisis?
↓ Hb + reticulocytopenia
Schistocytes are seen in what 2 Dx’s?
Disseminated intravascular coagulation (DIC) and Thrombotic Thrombocytopenic Purpura (TTP)
- Platelet 10-20K + mucosal bleeding OR
- Platelet < 10K and no bleeding are treated with:
Steroids or IVIG (or both)
In what Dx can we find recurrent DVTs, spontaneous abortions, or CV events?
Antiphospholipid Antibody Syndrome
Mgmt of Red Man Syndrome
- Antihistamine (Diphenhydramine) and stop offending agent.
- Can restart med slower without true anaphylaxis and resolved Sxs.
Tx for Neutropenic Fever
PCN (or 4th gen. Ceph) + Vanco
What lab would be affected by Hemophilia A, B, C?
PTT
What is the ONLY D/O causing increase in mean corpuscular hemoglobin concentration (MCHC)?
Hereditary Spherocytosis
Which lab tests platelet function and health?
Bleed time
Tx for Hereditary Spherocytosis
Daily Folic Acid
Dx for Sickle Cell Disease
↑ reticulocytes, ↓ Hct, Hgb
What risk does a high INR on Warfarin have?
Bleed risk
If INR is <5, what is the mgmt?
Lower dose or omit
Tx for Acute Chest Syndrome in SCD
Broad-spectrum antibiotics admit to ICU
Difference between Disseminated intravascular coagulation (DIC) and Thrombotic Thrombocytopenic Purpura (TTP):
- DIC has LOW Fibrinogen
- TTP has normal Fibrinogen
Recurrent DVTs and pulmonary embolism. Dx?
Factor V Leiden
Labs seen in Beta Thalassemia
- ↑ HgbF
- Codocytes (target cells)
Tx for severe Iron Deficiency Anemia
PO Ferrous Sulfate (unless showing Sxs CHF)
What is ESR?
Nonspecific marker of inflammation
MCC of mortality in sickle cell patients
Acute Chest Syndrome (ACS)
What anticoagulation med is CI in pregnancy?
Warfarin
Pt.: Short stature, deaf, skin hyper/hypopigmentation, cafe-au-lait spots, renal abnormalities. Labs: Macro anemia and↑ fetal hemoglobin (HgF). Dx?
Fanconi Anemia
Young kid with lymphadenopathy*, limping, bone pain. Lymphoblasts on peripheral smear. Dx?
Acute Lymphocytic Leukemia (ALL)
What PE is seen with Von Willebrand Disease (VWD)?
Mucosal bleeding
MC heme manifestation in chronic alcoholics
Macrocytosis
Dx for Hereditary Spherocytosis
Osmotic fragility test
What Dx presents post URI with thrombocytopenia?
Primary immune thrombocytopenia
What mandates antibiotic treatment for Neutropenic Fever?
Single oral temp. of 101F (38.3C) or 100.4 for >1 hr
Labs seen in Aplastic Crisis
↓ Hemoglobin and ↓Reticulocyte count
Dx for Polycythemia Vera
CBC
Hodgkin vs. Non-Hodgkin
H: Localized, single group of nodes
NH: Multiple, peripheral nodes
Post chemo initiation. HyperUricemia, HyperK, HyperPhos, HypoCa+. Dx?
Tumor Lysis Syndrome
In a person with normal marrow function, what is the mean life span of platelets?
7-10 days
What is a potential adverse effect associated with unfractionated heparin?
Thrombocytopenia
AA man is placed on Primaquine for travel to Africa. Within 5 wks he presents complaining of fatigue. CBC shows anemia. What diagnostic study should be performed? Why?
- G6PD assay
- Antimalarials, sulfas, nitro cause oxidative stress
Your patient has been treated for Fe deficiency anemia. What do you check to see if treatment is working?
↑ Reticulocyte (immature/new RBCs)
Tx for Pernicious Anemia
Steroids + B12
Tx of choice for mild Hemophilia A Deficiency and for severe bleed
Mild: DDAVP daily
Severe: Factor VIII infusion
Pregnant pt. presents with sudden onset bleeding and severe pain (placenta abrupto). She has an elevated PT and PTT. How would you treat this?
- FFP/packed RBCs
- D/T DIC
Pt. presents for routine check-up. He has ↓ serum iron, ↓ total iron binding capacity (TIBC), and ↑ ferritin. Dx?
Anemia of chronic disease (Normocytic, Normochromic)
Pt. presents for routine check-up. He has ↓ serum iron, ↓ total iron binding capacity (TIBC), and ↑ ferritin. What is the Tx?
- Monthly Erythropoietin (EPO) injections
- Dx: Anemia of chronic disease
Pt. presents with labs showing target cells (ringed sideroblasts) and basophilic stippling. Also has ↑ serum iron. What would be the diagnosis?
Lead poisoning
What is the next step in mgmt with Fe deficiency in adults >60yo and microcytic hypochromic anemia? Why?
- Colonoscopy
- Worry about colon CA until proven otherwise
What is the best treatment for a pt. with CKD and labs showing Cr 21, HgB 6.8?
-Transfusion (HgB <7, anytime)
47 yo female presents to the ED. She has Hx of DM and CHF and has darkening skin with elevated liver enzymes. What is the Dx?
Hemochromatosis “Bronze Diabetes”