0.5 mL citrated plasma in non-additive transport tube.
Test Description
Prothrombin Time and Activated Partial Thromboplastin Time.
Prothrombin Time (PT) measures the integrity of the extrinsic and common components of the coagulation cascade. Partial Thromboplastin Time (PTT) measures the integrity of the intrinsic and common components of the coagulation cascade.
Interferences: Marked hemolysis and lipemia. Partially full blue top tube may falsely increase sample’s coagulation time.
Note: clotting of the sample may preclude the analysis. The blue top tube needs to be filled to 2/3 or more of its capacity. Partially full blue top tubes may falsely increase the coagulation times.