An electrocardiogram (ECG) is a simple test that can be used to check your heart’s rhythm and electrical activity of your heart at rest. Sensors attached to the skin are used to detect the electrical signals produced by your heart each time it beats. This test would show if there were enlargement of the heart due to high blood pressure (hypertension) or evidence of a previous heart attack (myocardial infarction)

An ECG can help detect:

1. Arrhythmia – the heart beats too slowly, too quickly, or irregularly
2. Coronary heart disease – the heart’s blood supply is blocked or interrupted by a build-up of fatty substances.
3. Heart attacks – the supply of blood to the heart is suddenly blocked.
4. Cardiomyopathy – the heart walls become thickened or enlarged