what's a ekg
Patient Comment Read 1 Comment Share Your Story. The electrocardiogram (ECG or EKG) is a diagnostic tool that is routinely used to assess the electrical and muscular functions of the heart. While it is a relatively simple test to perform, the interpretation of the ECG tracing requires significant amounts of training. Numerous textbooks are devoted to the subject. The heart is a two stage electrical pump and the heart's electrical activity can be measured by electrodes placed on the skin.