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Electrocardiogram (ECG)

A test to measure and record heart activity

An ECG is a simple and non-invasive test to assess heart rate and rhythm and diagnose or monitor heart conditions

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HCA Booking Line:

0207 079 4344

What is an ECG?

An ECG records the rate, rhythm and electrical activity of your heart. It can be used to diagnose conditions such as an abnormal heart beat (arrhythmia) or to determine the effectiveness of medication. It can also be part of a routine medical check up to make sure your heart is functioning normally.

Need to know

  • What happens during an ECG? icon plus

    An ECG is a quick and painless test. You'll be asked to lie on a bed while several sensors are attached to your chest, wrists and ankles using small sticky pads. These sensors are connected to a machine that tracks and records the electrical signals that control your heart beat. It usually takes around five minutes to record this information and complete the test.

  • How to prepare for an ECG icon plus

    Your consultant or physiologist will explain the test to you and answer any questions you may have. Usually there isn't any special preparation needed for an ECG.

  • After an ECG icon plus

    The test itself isn't painful, and you'll be able to go home right after your appointment. Your consultant will discuss your results with you and let you know about any next steps, including further tests if needed.

Our cardiac team

Our cardiac departments are managed by cardiac specialist teams that include, cardiac physiologists, cardiac nurses and respiratory physiotherapists, who help support you during any diagnostics tests.


Our team of consultant cardiologists review the ECG reports will talk you through the results and your next steps.  

Cardiac outpatient test

Our locations

From straightforward procedures to a wide range of cardiac diagnostic test, we provide exceptional care across our network of hospitals, outpatient centres and specialist clinics.

Request an appointment

Our booking teams can help you make an appointment with one of our experienced consultants.

020 7079 4344
Book an appointment
This content is intended for general information only and does not replace the need for personal advice from a qualified health professional.
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