What does a positive stress test typically indicate?

• A. Normal cardiac function
• B. Increased risk of coronary artery disease
• C. Valvular heart disease
• D. Healthy exercise tolerance

Answer: (B)

A positive stress test typically indicates an increased risk of coronary artery disease, as the test is designed to assess how the heart responds to physical stress, which is influenced by the presence of blockages or other cardiovascular issues. During the test, if the heart doesn't receive enough blood flow due to narrowed arteries, it may respond with symptoms such as chest pain, changes in heart rhythm, or abnormal blood pressure responses. These findings suggest that there may be significant underlying coronary artery disease, necessitating further evaluation or intervention.

In contrast, a normal cardiac function would usually correlate with a negative or normal stress test, indicating that the heart can handle increased workload without issues. Valvular heart disease is not typically diagnosed through a stress test alone, as it usually requires imaging studies to assess heart structure. Healthy exercise tolerance is an aspect of overall cardiovascular fitness and would not specifically indicate a risk for coronary artery disease. Thus, a positive stress test more accurately points to an increased risk of coronary artery disease rather than normal function or valvular issues.