A patient experiencing acute postoperative dyspnea undergoes a V/Q scan, with results indicating an intermediate probability of pulmonary embolism (PE). Other than dyspnea, the only significant clinical findings are a moderate hypoxemia and tachycardia. Which of the following would you recommend?
A. additional testing
B. a repeat V/Q scan
C. vasodilator therapy
D. continued observation
Answer: A. additional testing
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