The electrocardiogram is a technique that uses an electrocardiograph to record a pattern of electrical activity changes produced by each cardiac cycle of the heart from the body surface.
Electrocardiogram is one of the most commonly used clinical examinations and is widely used. The scope of application includes:
1. Record the electrical activity of the normal heart of the human body.
2. Help diagnose arrhythmia.
3. Help diagnose myocardial ischemia, myocardial infarction and location.
4. Diagnose the heart to enlarge and hypertrophy.
5. Determine the effect of the drug or electrolyte condition on the heart.
6. Determine the artificial heart pacing condition.