label: Reduced prothrombin consumption
label_lc: reduced prothrombin consumption
description: "The prothrombin consumption test measures the formation of intrinsic thromboplastin by determining the residual serum prothrombin after blood clotting is complete. If there is a defect in the process, less prothrombin will be converted to thrombin than normal (less prothrombin is consumed). This test may be abnormal with conditions including deficiency of factors VIII or IX, with circulating anticoagulants, thrombocytopenia."