Apnea, hypoventilation and pulmonary hypertension Quiz: Ace Your Exams
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A 68-year-old man with a history of scleroderma is referred to a pulmonology PA for evaluation of recurrent hemoptysis. The patient reports ongoing chest tightness and dyspnea on exertion. Physical exam is notable for a loud P2 heart sound and jugular venous distention. Laboratory examination demonstrates normal troponin, d-dimer, and B-natriuretic peptide levels. ECG demonstrates right axis deviation. Right heart catheterization reveals a mean pulmonary arterial pressure of 45 mmHg (normal <25 mmHg). A vasoreactivity test is performed with nitric oxide, which results in a decrease of pulmonary arterial pressure by 15 mmHg. Based on these findings, which of the following subtypes of pulmonary hypertension does this patient have?
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