Prothrombin with INR and Partial Thromboplastin Times

The Prothrombin with INR and Partial Thromboplastin Times test contains 1 test with 3 biomarkers.

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.

The following is a list of what is included in the item above. Click the test(s) below to view what biomarkers are measured along with an explanation of what the biomarker is measuring.

Also known as: APTT, PT, PT and PTT, PT/PTT, PTT

Inr

International normalized ratio (INR) - To check how well the blood-thinning medication (anticoagulant) warfarin (COUMADIN®) is working to prevent blood clots; to help detect and diagnose a bleeding disorder. Internationalized Normalized Ratio (INR) with the PT test for people who are receiving the anticoagulant warfarin (COUMADIN®).

Partial Thromboplastin

Pt

Prothrombin time (PT) is a blood test that measures the time it takes for the liquid portion (plasma) of your blood to clot.
*Process times are an estimate and are not guaranteed. The lab may need additional time due to weather, holidays, confirmation/repeat testing, or equipment maintenance.