12-Lead ECG

A 12-lead electrocardiogram (ECG) is a quick, non-invasive test that records the electrical activity of your heart. It helps your cardiologist assess your heart rhythm and detect signs of conditions such as arrhythmias, heart attacks, or other cardiac abnormalities.

Small adhesive electrodes are placed on your chest, arms, and legs to measure your heart’s electrical signals. These signals are displayed as waveforms on a monitor or printed on paper for your cardiologist to interpret. The procedure usually takes around 5–10 minutes.

No, an ECG is completely painless. You may feel the coolness of the electrodes or mild pressure when they are applied, but the test does not involve any needles or shocks.

No special preparation is required. You can eat, drink, and take your usual medications before the test. It’s best to wear a loose-fitting top to allow easy access to your chest area.

Once the ECG is complete, your results are reviewed by a cardiologist. Your referring doctor or cardiologist will then discuss the findings with you and determine if any further investigation or treatment is needed.