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What is a D-dimer test?

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Quick Answer

The D-dimer test is used to test for a protein that helps with blood clotting. Doctors use the D-dimer test to check for blood clotting problems and to see how well a treatment is working, according to WebMD.

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The test is a easy procedure in which a medical professional draws the patient's blood. The test does not involve special preparation and only takes a few minutes, but the results might take a while to process. The D-dimer is often used to test for deep vein thrombosis, pulmonary embolism and disseminated intravascular coagulation. If blood is clotting properly, a low or normal level of the D-dimer protein is released, which is then found in the blood draw, notes WebMD.

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