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CCRN Critical Care Nursing

Category - Adult

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Among the following diagnostic tests, which would be the most definitive in diagnosing a pulmonary embolism?

Chest x-ray
Ventilation-perfusion (V/Q) scan
Spiral computed Tomographic scan
D-dimer blood test

Explanation

Answer: C - The most definitive test to diagnose a pulmonary embolism would be the spiral computed Tomographic scan. It is a quick and noninvasive test that can visualize vessels and thrombotic emboli when contrast is used. Pulmonary Angiography is the most definitive diagnostic test but it is not readily available and is more costly and invasive.

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