Test Details


Patient Preparation: Overnight fasting is preferred. Duly filled Coagulation Requisition Form is mandatory.

APTT test is done to check clotting factors deficiency
  • Why Take this Test

    It should be measured to investigate a bleeding or thrombotic episode. It helps evaluate the risk of excessive bleeding prior to a surgical procedure. Also, to monitor heparin anticoagulant therapy.

  • Is this Test For You

    Your health practitioner may recommend this test for you if you show symptoms of prolonged and excessive bleeding which includes:

    Frequent nosebleeds

    Blood in urine

    Heavy menstruation for women

    Painful and swollen joints

    Easy bruising

  • More Information

    The activated partial thromboplastin time is a functional measure of the intrinsic and usual pathways of the clotting cascade. To form blood clots, to seal off injuries, to blood vessels and tissue, to restrict further blood loss, and to give the damaged areas time to seal the body using the coagulation cascade. The cascade contains a group of clotting factors. These proteins are activated serially along either the extrinsic or intrinsic pathways.

Sample: WB Citrate (3 mL) / Citrated Plasma

Methodology: Electromechanical clot detection.