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12 Lead ECG

A 12-lead electrocardiogram is a non-invasive test recorded using leads attached to the body. Results are transferred to printed paper that can be then analysed.


Nil known.

Why do I need an ECG:

  • Enlargement of the heart
  • Congenital heart defects involving the conducting (electrical) system
  • Abnormal rhythm (arrhythmia) – rapid, slow or irregular heart beats
  • Damage to the heart such as when one of the heart’s arteries is blocked (coronary occlusion)
  • Poor blood supply to the heart
  • Abnormal position of the heart
  • Heart inflammation – pericarditis or myocarditis
  • Cardiac arrest during emergency room or intensive care monitoring
  • Disturbances of the heart’s conducting system
  • Imbalances in the blood chemicals (electrolytes) that control heart activity.


  • No need to stop medications
  • Fasting is not required
  • Shower preferable, avoid applying any moisturisers, creams or powders.
  • You may be asked to remove all metallic objects like jewellery.
  • Men are usually barechested during the test. Women may often wear a bra, T-shirt, or gown.

A report will be sent to your referring doctor, usually within 24 hours. Your doctor will discuss your results at your next appointment. If you require your report sooner please inform either the reception staff or the technician.