What is the primary function of a coronary angiogram?

The primary function of a coronary angiogram is to visualize the blood vessels of the heart. This diagnostic procedure uses imaging technology, typically X-rays, after a contrast dye is injected into the coronary arteries. By doing so, it allows healthcare providers to see any blockages or abnormalities in the coronary arteries, which supply blood to the heart muscle. Understanding the state of these blood vessels is crucial for diagnosing conditions such as coronary artery disease, which can lead to heart attacks and other serious cardiovascular issues.

The other options pertain to different aspects of cardiovascular assessment or treatment: measuring heart rate is important for monitoring heart rhythm and function, assessing blood pressure evaluates the force of blood against artery walls, and strengthening heart muscles usually involves lifestyle changes or medications, rather than a diagnostic imaging technique. Each of these has its own significance but does not fulfill the primary role that a coronary angiogram plays in cardiology.