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D-Dimer TestThis test is used to rule out deep vein thrombosis (DVT) and pulmonary embolism; evaluate disseminated intravascular coagulation; and can be used to monitor the extent of clot lysis during thrombolytic therapy. D-dimer has utility in the assessment of deep vein thrombosis (DVT) and pulmonary embolism (PE). D-dimer levels can be elevated in many clinical circumstances. While increased levels are not specific for DVT or PE, low D-dimer levels may be used to rule out these conditions. The negative predictive values for DVT and PE are >90% using the sensitive D-dimer assay with a cutoff <0.5 FEU. Values <0.5 FEU in an individual with a low clinical risk of venous thrombosis can serve as the basis for not performing more expensive diagnostic tests for DVT and PE. Patients with results greater than this cutoff require further diagnostic testing to establish the diagnosis. A significant
deviation from the normal range may require further evaluation by your physician.
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