What is the normal range for PT (Prothrombin Time)?

The normal range for Prothrombin Time (PT) is indeed between 11 and 13.5 seconds. PT is a blood test that measures how long it takes for blood to clot, which is crucial for assessing the functionality of several clotting factors, especially those that are vitamin K-dependent.

This range is used as a reference point to help diagnose clotting disorders or monitor patients on anticoagulation therapy, such as warfarin. If the PT is longer than this normal range, it may indicate a deficiency in clotting factors or the effect of anticoagulant medications, while a shorter PT may suggest hypercoagulability. Understanding the normal PT range is essential for evaluating a patient's coagulation status and managing potential bleeding risks or clot formation.