Which cardiac test is performed under exercise stress to evaluate heart function?

• A. Thoracentesis
• B. Thoracoscopy
• C. Stress Test
• D. Pulmonary Angiography

Answer: (C)

Assessing how the heart functions under exertion. A stress test pushes the heart to work harder, usually with controlled exercise on a treadmill or bike, while doctors monitor the ECG, blood pressure, symptoms, and often use imaging to watch blood flow or heart muscle movement. This combination helps reveal problems like reduced blood flow from blocked arteries or abnormal heart responses that don’t show up when the heart is at rest. Other procedures listed are not designed to evaluate cardiac function during exercise: removing fluid from the chest cavity, visually inspecting the chest, or imaging the lungs’ blood vessels. So the stress test is the test specifically used to evaluate heart performance under exercise.