The nurse notes a patient's leg is swollen, red, warm, and tender. Suspecting a deep-vein thrombosis (DVT), the nurse anticipates the physician will order which lab test?


• D-dimer is a fibrin degradation product. These products increase during a thrombotic event.

• An elevated D-dimer is indicative of a DVT, but an ultrasound is needed to confirm the presence of a DVT.

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