A d-dimer test is a blood test that measures a substance (fibrin)
that is released as a blood clot breaks up. D-dimer levels are often higher
than normal in people who have a blood clot, but other conditions also may cause high d-dimer levels.
A low d-dimer test
result means that a blood clot in the leg or the lung (pulmonary embolism) is
E. Gregory Thompson, MD - Internal Medicine & Martin J. Gabica, MD - Family Medicine
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