In which situation is an ECG most commonly performed?

An ECG, or electrocardiogram, is primarily used for routine cardiac evaluations. This test measures the electrical activity of the heart over a period of time, providing vital information about the heart's rhythm, size, and any potential damage or abnormalities. Routine cardiac evaluations are essential for diagnosing various heart conditions, monitoring heart health, and assessing the effectiveness of treatments.

In clinical practice, an ECG is often part of a regular check-up or when a patient presents symptoms such as chest pain, palpitations, or unexplained fatigue. Though it can be performed in various contexts, such as before surgery or when a patient has respiratory symptoms, its most common use is specifically related to assessing cardiac function and health.