Hematology Flashcards
Iron panel for sideroblastic anemia
High iron and normal ferritin and TIBC
What type of anemia is seen in renal failure?
Normocytic
Labs for hemolytic anemia
Increased iron, LDH and INDIRECT bilirubin; low haptoglobin
How does avascular necrosis present?
pain on abduction and internal rotation of the hip
Avascular necrosis of the femoral head- diagnosis
X-ray => MRI
What lowers mortality in sickle cell
hydroxyurea and antibiotics (ceftriaxone, levofloxacin, or moxifloxacin)
When is exchange transfusion done for sickle cell
Vasoocclusive crisis: acute chest, priaprism, stroke, visual disturbance
Hereditary spherocytosis vs autoimmune hemolysis
Spherocytosis: positive osmotic fragility
Autoimmune: positive Coombs
Autoimmune hemolysis: warm vs cold; dx and causes
Warm: IgG; drugs, cancer, rheumatology
Cold: IgM; autoimmune antibodies
Features of cryoglobulinemia
Hep C, joint pain, glomerulonephritis
Warm vs cold autoimmune hemolysis; treatment
Warm: Steroids, IVIG
Cold: Rituxumab, cyclophosphamide; NO STEROIDS
Which anemias are positive prussian blue
Sideroblastic and G6PD
Labs and features of TTP-HUS
ADAMS TS13 mutation
hyaline clot with normal PT, PTT, fibrinogen, and d-dimer levels
Fever, anemia, thrombocytopenia, renal failure, neurologic sx
Tx of TTP
Plasmapheresis
What is the most common cause of death/complication of paroxysmal nocturnal hemoglobinuria?
Venous thrombosis