Platelets < 150,000 /µl Isolated thrombocytopenia platelets < 100,000/ µl Isolated thrombocytopenia platelets 100,000-150,000/ µl Thrombocytopenia with anemia or leukopenia Isolated thrombocytopenia platelets < 100,000/ µl Blood Smear Blood Smear Platelet clumps No Platelet clumps Platelet clumps Repeat CBC in tube with heparin or citrate Repeat CBC in tube with heparin or citrate Platelet count normal Pseudothrombocytopenia Evaluate for: infection connective tissue disease medications AND Consider referral to Hematologist Repeat every 6-12 months Platelet count remains stable Isolated platelet count < 100,000/ul Periodic CBC Back