D-dimer is one of the protein remains produced when a blood clot gets dissolved in the body. It is usually undetectable or detectable at a very low level if the body is forming and breaking down blood clots. Later, its level in the blood can significantly rise. This test is used to detect D-dimer in the blood.

Other names: fragment D-dimer, fibrin degradation fragment


This test is done to help rule out clotting (thrombotic) episodes and to help diagnose conditions related to thrombosis


Once you have symptoms of a blood clot or a condition that causes inappropriate blood clots, such as deep vein thrombosis (DVT), pulmonary embolism (PE), or disseminated intravascular coagulation (DIC), and to monitor treatment of DIC and excessive clotting conditions.

    • Why do I need this test?

    • You may need this test if you have symptoms of a blood clotting disorder, such as deep vein thrombosis (DVT) or a pulmonary embolism (PE).
    • Symptoms of DVT include:
    • Leg pain or tenderness.
    • Leg Swelling.
    • Redness or red streaks on the legs.


    • Symptoms of PE include:
    • Trouble breathing.
    • Cough.
    • Chest pain.
    • Rapid heartbeat.


  • This test is often done in an emergency room or other health care setting. If you have DVT symptoms and are not in a health care setting, call your health care provider. If you have symptoms of PE, call 911 or seek immediate medical attention.
D Dimer

D Dimer

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