Activated Partial Thromboplastin Time (APTT)

Description

About Activated Partial Thromboplastin Time (APTT) Test in Delhi

The Activated Partial Thromboplastin Time (APTT) test is a blood test used ... to evaluate how long it takes for blood to clot. It helps assess the intrinsic and common coagulation pathways, including clotting factors VIII, IX, XI, and XII. This test is commonly performed to diagnose bleeding disorders, monitor patients on anticoagulant therapy (like Heparin), and assess clotting function before surgeries.

In Delhi, several diagnostic labs and hospitals offer the APTT test with home collection services and fast report delivery. It is often done alongside the Prothrombin Time (PT) test for a complete blood clotting evaluation.

When is the APTT Test Prescribed?

Doctors recommend the APTT test in various medical conditions, including:

Bleeding Disorders: If a patient experiences frequent bruising, prolonged bleeding, nosebleeds, or heavy menstrual bleeding, this test helps detect clotting factor deficiencies (e.g., Hemophilia A & B, von Willebrand disease).

Monitoring Heparin Therapy: Patients receiving Heparin injections require APTT testing to ensure the correct dosage and prevent excessive bleeding.

Liver Disease: Since the liver produces clotting factors, the test helps evaluate liver function in patients with cirrhosis, hepatitis, or other liver disorders.

Before Surgery: To ensure normal blood clotting before major surgeries or procedures, reducing the risk of excessive bleeding.

Disseminated Intravascular Coagulation (DIC): A life-threatening condition where excessive clotting and bleeding occur simultaneously.

Lupus Anticoagulant Screening: The test helps diagnose antiphospholipid syndrome, a disorder that increases the risk of blood clots.

Time Required for APTT Test Report

The reporting time for the APTT test is usually 4 to 6 hours after sample collection. Some diagnostic labs may take up to 24 hours, depending on their processing time.