Pseudothrombocytopenia in a patient undergoing splenectomy of an accessory spleen. Case report.

Background And Objectives: Coagulation tests (CBC and prothrombin time) were initially conceived as a mean of screening and following rare congenital coagulopathies; the CBC provides the number of platelets per cubic milliliter. The objective of this report was to present the case of a patient who presented with an extremely low number of platelets when her blood was analyzed in an EDTA-containing tube and its numbers were normal when the blood was analyzed with citrate, alerting for the risk of erroneously administering blood products.

Case Report: This is the case of a 40-year-old female patient, ASA II.