Electrocardiogram (ECG)
Howan ECG iscarried out
There are several different ways an ECG can be carried out. Generally, the testinvolves attaching a number of small, stickysensors called electrodes to your arms, legs and chest. These are connected by wires to an ECG recording machine.
You don't need to do anything special to prepare for the test. You can eat and drink as normal beforehand.
Before the electrodesare attached, you'll usually need to remove your upper clothing, and sometimes your chest may need to be shaved or cleaned. Once the electrodes are in place, you may be offered a hospital gown to cover yourself.
The test itself willnormally only last a few minutes, and you can usually go home soon afterwards or return to the ward if you're already staying in hospital.
Medically Reviewed by a doctor on 21 Dec 2018
Introduction
Read about electrocardiograms (ECGs), including why they're done, what happens and what the potential risks are.
Whenan ECG is used
An ECG is often used alongside other tests to help diagnose and monitor conditions affecting the heart.It can be used to investigate symptoms of a possible heart problem, such as chest pain, suddenly
Howan ECG iscarried out
There are several different ways an ECG can be carried out. Generally, the testinvolves attaching a number of small, stickysensors called electrodes to your arms, legs and chest. These are connected b
Types of ECG
There are three main types of ECG: a resting ECGcarried outwhile you're lying down in a comfortable position a stress or exercise ECGcarried outwhile you're using an exercise bike or treadmill an am
Getting your results
An ECG recording machine will usually show your heart rhythm and electrical activity as a graph displayed electronically or printed on to paper. For an ambulatory ECG, the ECG machine will store the i
Are there any risks or side effects?
An ECG is a quick, safe andpainless test. No electricity is put into your body while it's carried out.There may be someslight discomfort when the electrodes are removed from your skin similar to remov
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