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A member asked:
What is the difference between pt and ptt partial thromboplastin time?
A doctor has provided 1 answer
Two pathways: The process of coagulation follows two pathways, and pt measures the constituents of the extrinsic pathway and PTT measure the constituents of intrinsic pathway. There is a common final pathway for both sides. The tests help in diagnosing the type of coagulation abnormality, e.g., pt is prolonged on treatment with coumadin/warfarin and PTT is prolonged with heparin.
Answered 6/10/2014
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