Prothrombin Time

Pro Time, PT (Prothrombin Time)

How To Prepare

Many medicines can change the results of this test. Be sure to tell your doctor about all the nonprescription and prescription medicines you take, as well as any supplements or herbal remedies you use.

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Author:	Jan Nissl, RN, BS	Last Updated: September 25, 2006
Medical Review:	Patrice Burgess, MD - Family Medicine Joseph O'Donnell, MD - Hematology/Oncology
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