098105 31897Understanding an ECG Test: What Patients Should Know
A simple guide to what an ECG records, how the test is performed and what patients should confirm before visiting the centre.
What does an ECG record?
An ECG captures electrical signals from the heart and displays them as waveforms. A clinician interprets the tracing together with symptoms, history and other clinical information.
How is the test performed?
Small electrodes are placed on the skin to record the heart’s electrical activity. The test is usually quick and does not involve needles or an injection.
Do I need special preparation?
In many cases, there is no special preparation. However, practical instructions can vary, so confirm timing and any centre-specific guidance before your visit.
What should I tell the clinician?
Share relevant symptoms, current medicines and any prior cardiac reports when appropriate. Do not interpret an ECG result yourself; it should be reviewed by a qualified healthcare professional.
When should I seek urgent care?
An ECG appointment is not a substitute for emergency evaluation. If someone has severe chest pain, severe breathing difficulty, fainting or other emergency symptoms, seek urgent medical attention rather than waiting for a routine diagnostic appointment.
