Are there any risks or side effects?

An ECG is a quick, safe and painless test. No electricity is put into your body while it's carried out.

There may be some slight discomfort when the electrodes are removed from your skin – similar to removing a sticking plaster – and some people may develop a mild rash where the electrodes were attached.

There's a possibility the stress placed on your heart during an exercise ECG could cause you to experience problems such as chest pain, an irregular heartbeat, or even a heart attack in some cases, but you'll be monitored carefully during the test and it can be stopped if you start to feel unwell.

Content supplied by the NHS Website

Medically Reviewed by a doctor on 21 Dec 2018