What is the approach to thrombocytopenia?,”Pseudo: clumping (need citrate in the tubes)Production: Infiltrative (MDS, BM mets, leukemia), Infectious (V viruses, rubella, mumps), aplasia (Fanconi, aplastic anemia), Toxins (chemo, radiation, EtOH), B12/folate deficiency Destruction: ITP, alloimmune (transfusion), MAHA (DIC, TTP/HUP, HELLP, APLA), Infection (HIV, EBV, CMV)
Drugs (Heparin main one) Sequestration: spleen (Plt usually > 30)”