Electrocardiography, also referred to as ECG testing, is a noninvasive test that records the electrical activity of the heart.
ECG can establish a baseline evaluation of a person’s heart and investigate newly evolving symptoms, such as chest pain, shortness of breath, or palpitations. Physicians use different forms of ECG testing, including resting, stress, and ambulatory ECG.
During electrocardiography (ECG), electrical signals from each heartbeat are transmitted from electrodes on the patient’s skin to a machine that creates a graph of the rhythm and rate of the heartbeat.