Prothrombin Time (PT) and Partial Thromboplastin Time (PTT)is a test that is used to diagnose blood clotting disorders.
PT-Screening test for deficiencies of plasma coagulation factors other than Factors VII and XIII. The test is also used to monitor patients on heparin therapy.
PTT-Screening test for abnormalities of coagulation factors that are involved in the extrinsic pathway. Also used to monitor effects of Warfarin therapy and to study patients with hereditary and acquired clotting disorders.
Significant deviations from the normal range may require further evaluation by your physician.
Alternative Name(s): APTT, PTT, PT
PT and PTT
No fasting required.
Estimated turnaround for results is 3 business days. If confirmation testing is required, the estimated time may be extended.