Service Description

The PT/INR + PTT test evaluates blood clotting by measuring how long it takes for blood to clot. PT (Prothrombin Time) and INR (International Normalized Ratio) assess the extrinsic pathway, while PTT (Partial Thromboplastin Time) evaluates the intrinsic pathway. Why it’s done: To assess bleeding or clotting disorders To monitor patients on anticoagulant therapy (e.g., warfarin, heparin) To evaluate liver function and detect liver disease To investigate unexplained bruising, bleeding, or clot formation To pre-screen before surgery or invasive procedures Specimen Type: Blood draw Turnaround Time: Typically 1 business day Collection Available: In-office or mobile blood draw services