An electrocardiogram, commonly known as an EKG or ECG, is a test that measures the electrical activity of your heart. It's a quick, painless, noninvasive test used to check for various heart ...

What is an electrocardiogram (ECG or EKG)? An electrocardiogram (ECG) records the electrical activity of the heart. Sometimes this test is called an EKG. Why is an ECG done? The test is used to check ...

An electrocardiogram, also called EKG or ECG, gives physicians specific information about the electrical activity of the heart by recording its rhythms and patterns. An electrocardiogram helps to ...

These may present as premature contractions, transient tachycardia lasting only a few moments, or other abnormal rhythms. In this 12-lead EKG case, the AIVR is easily explained by reperfusion.