About The Medical Condition Partial Thromboplastin Time

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Find the definition of the medical term Partial Thromboplastin Time. Partial Thromboplastin Time defined and explained for easy understanding at the Medical Conditions from ClusterMed.info.

Partial Thromboplastin Time

Partial Thromboplastin Time Medical Condition Defined & Explained
Partial Thromboplastin Time Medical Condition

What's The Definition Of The Medical Condition Partial Thromboplastin Time?

Test of the intrinsic (factors VIII, IX, XI, and XII) and common (fibrinogen, prothrombin, factors V and X) pathways of coagulation in which a mixture of plasma and phospholipid platelet substitute (e.g., crude cephalins, soybean phosphatides) is recalcified and the time required for the appearance of fibrin strands measured. Activation may be provided by contact with the glass tube or exposure to activators (e.g., ellagic acid, particulate silicates such as diatomaceous earth or kaolin) before addition of the calcium chloride. It is used as a screening test and to monitor heparin therapy.

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