Define electrocardiogram. A)An electrocardiogram is a color-enhanced digital scan of the heart. B)An electrocardiogram is an ultrasound of the heart. C)An electrocardiogram allows physicians to see blood flow through the heart. D)An electrocardiogram is a recording of the electrical activity of the heart. E)An electrocardiogram is a recording of the contractile activity of the heart.

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Quizplus · Accepted Answer

An electrocardiogram (ECG or EKG) is a noninvasive test that records the electrical activity of the heart using electrodes placed on the skin. It provides information about the heart's rhythm, rate, and electrical conduction, which can be used to diagnose various cardiac conditions.

Define Electrocardiogram