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Evaluation of PT and aPTT Test Results

Specialty:	Hematology Oncology Clinical Laboratory
Objective:
ICD-10:
Description:	The prothrombin time (PT) and activated partial thromboplastin test (aPTT) are common screening tests for the coagulation cascade. If one or both of these tests is abnormal, retesting of the sample after addition of normal plasma can help separate a deficiency state from the presence of an inhibitor.

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Last website update December 1, 2020

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Evaluation of PT and aPTT Test Results

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