APTT
The Activated Partial Thromboplastin Time (APTT) test measures the time it takes for blood to clot through the intrinsic and common pathways of the coagulation system. It helps evaluate the function of various clotting factors and is an important test for assessing the body’s ability to form blood clots properly.
A prolonged APTT may indicate clotting disorders such as hemophilia, liver disease, vitamin K deficiency, or the presence of anticoagulants like heparin. It is also used to monitor patients undergoing heparin therapy. A normal APTT suggests that the clotting process is functioning effectively. Doctors often recommend this test in cases of unexplained bleeding, before surgery, or for monitoring anticoagulant treatment.
The APTT test is simple and requires a small blood sample. Accurate results help healthcare professionals diagnose coagulation disorders, guide treatment decisions, and ensure safe medical and surgical care.