ECG AT A GLANCE

A recording of the electrical activity of the heart. Abbreviated ECG and EKG.

Electrocardiogram: A recording of the electrical activity of the heart. Abbreviated ECG and EKG. An ECG is a simple, noninvasive procedure. Electrodes are placed on the skin of the chest and connected in a specific order to a machine that, when turned on, measures electrical activity all over the heart.