About The Medical Condition Activated Partial Thromboplastin Time
Find the definition of the medical term Activated Partial Thromboplastin Time. Activated Partial Thromboplastin Time defined and explained for easy understanding at the Medical Conditions from ClusterMed.info.
Activated Partial Thromboplastin Time
| Activated Partial Thromboplastin Time Medical Condition |
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What's The Definition Of The Medical Condition Activated 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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