An electrocardiogram (ECG) is a test that allows doctors to assess the way in which electricity passes through the heart. A small impulse of electricity flows through the heart and coordinates the squeezing of the collecting chambers followed by the squeezing of the pumping chambers.

To perform an ECG, your child will have a number of leads placed on their chest. The actual recording of the ECG only takes 10 seconds.

However, sometimes if your child moves, this may take longer as movement creates interference. Some children with sensitive skin may react to the stickers, though, otherwise, there is no known risk of this test.