Which is a clinical manifestation of pulmonary hypertension?

Exertional dyspnea is a classic clinical manifestation of pulmonary hypertension. This condition is characterized by increased pressure in the pulmonary arteries, which can lead to insufficient blood flow and oxygen delivery to the lungs. As a result, patients may feel short of breath during physical activity, even with minimal exertion, because their hearts and lungs are struggling to meet the body's oxygen demands.

When exertion occurs, the difficulty in oxygen exchange becomes more pronounced, often leading to noticeable breathing difficulties. Because of this, patients with pulmonary hypertension frequently report dyspnea during exercise or activity, which is a key symptom that can prompt further investigation and diagnosis of the condition. The other options—while they may be associated with various cardiovascular or pulmonary issues—do not specifically align as prominently with the hallmark symptomatology of pulmonary hypertension as exertional dyspnea does.