ECG (Electrocardiogram)

 What is an ECG?

An ECG is a test to monitor the electrical activity of your heart muscle at one point in time. Voltage differences on the surface of the body are displayed in the format of the image alongside. This test can provide information about your heart rhythm in order to diagnose an arrhythmia, or irregular heart rhythm, and may also display features suggestive of underlying coronary artery disease or structural heart disease such as cardiac failure.  Other tests would be required to confirm either of the latter two diagnoses however.

 

How is the test performed?

The test is completely painless and takes only several minutes to perform. Electrodes are placed on a patient’s chest and limbs and connected to a machine.  The patient is required to lie still whilst the recording is taken.