A nurse is providing education to a client about the risk factors for deep vein thrombosis (DVT). Which statement made by the client indicates a need for further teaching?

A) This choice is correct. The D-dimer blood test is a rapid and sensitive screening test that can help rule out DVT in low-risk individuals. A negative D-dimer result can be useful in excluding DVT, avoiding unnecessary imaging or invasive tests.

B) This choice is incorrect because contrast venography is not a rapid test and involves invasive procedures. It is not used as a first-line screening test due to its complexity and potential risks.

C) This choice is incorrect because magnetic resonance imaging (MRI) may provide valuable information, but it is not the first choice for rapid rule-out of DVT. MRI may be employed in specific cases when initial screening tests are inconclusive.

D) This choice is incorrect because the Wells score assessment is not a diagnostic test but a scoring system to estimate the likelihood of DVT. It does not provide rapid results to rule out DVT directly.

A) This choice is incorrect because chest pain and shortness of breath are more indicative of a potential pulmonary embolism, a serious complication of DVT. While DVT can lead to a pulmonary embolism, the primary manifestation of DVT is related to the affected limb.

B) This choice is correct. Warmth and redness over the affected area, typically the calf or thigh, are common clinical manifestations of DVT. The warmth is due to the inflammatory response caused by the blood clot formation.

C) This choice is incorrect because pedal edema and bilateral leg pain are non-specific findings and can be caused by various conditions, not just DVT. They are not specific enough to diagnose DVT on their own.

D) This choice is incorrect because weak pedal pulses and cool extremities are not typically associated with DVT. These findings suggest potential arterial insufficiency rather than venous thrombosis.