NAPLEX (North American Pharmacist Licensure Examination) Practice Exam

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What is the most common cause of death in Pulmonary Arterial Hypertension (PAH)?

Stroke
Heart Failure
Embolism
Infection

The correct answer is: Heart Failure

In Pulmonary Arterial Hypertension (PAH), the most common cause of death is heart failure. PAH is a condition characterized by high blood pressure in the arteries of the lungs, which puts extra strain on the right side of the heart. Over time, this increased pressure in the pulmonary arteries can lead to the right side of the heart becoming enlarged and weakened, eventually leading to heart failure. Therefore, managing and treating heart failure is crucial in patients with PAH to improve outcomes and reduce mortality rates. While strokes, embolisms, and infections can also occur in patients with PAH and contribute to complications, they are not as common as heart failure as the primary cause of death in this condition.