Which finding results from pulmonary hypertension?

• A. Left atrial enlargement
• B. Aortic stenosis
• C. Coronary artery spasm
• D. Right ventricular enlargement

Answer: (D)

Pulmonary hypertension increases the afterload on the right ventricle, meaning the right heart has to push blood through high resistance in the pulmonary arteries. To cope, the right ventricle undergoes hypertrophy and, over time, dilates as it struggles to maintain its output. This remodeling results in right ventricular enlargement. The other options don’t fit because left atrial enlargement comes from issues on the left side of the heart (like mitral problems), aortic stenosis affects the left ventricle, and coronary artery spasm is an acute ischemic event rather than a chronic pressure overload of the right ventricle.