What Is An Electrocardiogram?

An electrocardiogram seems to help doctors pinpoint issues with the electrical activity of a patient's heart. It should simply measure the electrical signals, not create electricity. This test may reveal the causes of chest pain, irregular heartbeats, and shortness of breath. Electrocardiograms appear to be quite common, and patients may have had at least one before. Most patients seem to get one when they visit the emergency room. They do not appear to cause any pain.