The electrocardiogram (ECG or EKG) is a noninvasive test that is used to reflect underlying heart conditions by measuring the electrical activity of the heart. By positioning leads (electrical sensing devices) on the body in standardized locations, information about many heart conditions can be learned by looking for characteristic patterns on the EKG.
An abnormal ECG indicates:
1) Heart abnormalities like enlargement of heart
2) Electrolyte imbalances
3) Heart attack or ischemia
4) Heart rate abnormalities
5) Heart rhythm abnormalities
Types of ECG Tests: Holter monitor, Signal-averaged electrocardiogram, CardioPulmonary Excercise Test, Excercise ECG or Stress Test, and Resting 12 Lead ECG.
