Heme Flashcards
Causes of micro, normo, macrocytic anemia
Microcytics: TICS
Normocytic: chronic dz, hemolytic
Macrocytic: B12, folate
This anemia will not respond to epo
Chronic dz
Target cells, Howell-Jolly bodies
Sickle-cell
Smooth tongue, glossitis, cheilosis
Stocking-glove paresthesia, loss of sensation, ataxia
B12 deficiency
Pernicious anemia
Cannot absorb B12 (lack intrinsic factor)
Triggered by drugs, infxn, fava beans
Bite cells, Heinz bodies
G6PD deficiency anemia
Tx for G6PD def anemia
Self-limiting episodes
Auer rods
Adults
AML
Kids
Pancytopenia
Bone pain
ALL
AML tx
Chemo + radiation/drugs
ALL tx
Chemo + radiation/drugs (50% cure)
Smudge cells
Older pts
CLL
Philadelphia chromosome
Young to middle aged
CML
CLL tx
Often harmless, but resistant to cure
CML tx
Gleevac, bone marrow transplant
Associated w/ EBV
Pain in node after alcohol
Reed-Sternberg cells
Hodgkin lymphoma
Painless lymphadenopathy
Non-Hodgkin lymphoma
Cancer of plasma cells
Rouleaux formation (RBC stack like coins)
Monoclonal spike
Bence Jones proteins in urine
Multiple myeloma
Gingival bleeding
Von Willebrand
Von Willebrand tx
Desmopressin
Vit K dependent clotting factors
Factors 2, 7, 9, 10
Factor 8 def, X-linked (males)
Hemophilia A
Factor 9 def, X-linked (males)
Hemophilia B
Factor V Leiden: clotting or bleeding d/o?
Clotting d/o
Protein C & S deficiency: clotting or bleeding d/o?
Clotting d/o, C & S are natural anticoags
Unopposed conversion of fibrinogen to fibrin
Antithrombin III deficiency
Autoimmune, excessive platelet destruction
Follows viral infxn (1-4 wks later)
Idiopathic thrombocytopenic purpura
Def of enzyme needed to cleave vWF
Schistocytes (RBC fragments)
Thrombotic thrombocytopenic purpura
Idiopathic thrombocytopenic purpura tx
Self-limiting
Thrombotic thrombocytopenic purpura tx
Plasma exchange, prednisone, antiplatelets