An Electrocardiogram (ECG or EKG) records the heart’s electrical patterns.  Leads (wires) are attached to your arms, legs and chest.  They are connected to a machine that shows the electrical patterns on a screen.

• A resting ECG is done while you’re sitting or lying down.  It can show whether your heart has already been damaged by a heart attack.

• A stress ECG is done while you’re exercising on a treadmill or stationary bike.  It shows how your heart respond to exercise.  Tell the doctor if your feel Angina during this stress test.