Prothrombin time test procedure pdf

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The Prothrombin time is a useful screening procedure for deficiencies in factors II, V, VII and X. Deficiencies in factor I, although rare, A prothrombin time test measures how long it takes for your blood plasma to clot. Prothrombin, or factor II, is one of 12 proteins in the clotting process. Prothrombin time test​​ A sample of the patient's blood is obtained by venipuncture. The blood is decalcified (by collecting it into a tube with oxalate or Lyophilized Reagent PT (lyophilized powder) : 1ml, 2ml, 4ml, thromboplastin in test plasma(rabbit brain, the human brain, PT Measuring Procedure.Perform the Prothrombin Time assay within 4 hours. 2. Reconstitute the control plasmas (normal control plasma, abnormal control plasma) according to the