two-stage prothrombin test

two-stage prothrombin test
two-stage prothrombin time test (for prothrombin) the quantity of prothrombin can be measured after tissue thromboplastin and excess factor V have converted it to thrombin, by determining the clotting time of a standard fibrinogen solution to which the previously generated thrombin has been added.

Medical dictionary. 2011.

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