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Electrocardiogram (ECG)

An Electrocardiogram (ECG) is a test that can be used to assess the heart’s electrical and rhythm activity. This is conducted by attaching sensors to the skin which detect electrical signals produced by the human heart.

What are the diseases/disorders that are diagnosed using an ECG:

  • Coronary Heart Disease: This occurs when the blood supply to the heart is interrupted or blocked by a build-up of fatty substances.
  • Cardiomyopathy: The thickening or enlargement of the heart walls
  • Arrhythmias: This occurs when the heart beats irregularly, slowly, or too quickly.
  • Heart Attack: This is a situation where the blood supply to the heart is suddenly blocked.

 

WHAT ARE THE VARIOUS TYPES OF ECG?
  • Ambulatory ECG: This is a type of ECG where the electrodes are connected to a small portable machine worn at the patient’s waist and allows the heart to be monitored for more than 1 day.
  • Resting ECG: This is carried out while the patient is lying down and an ECG is carried out.
  • Exercise or Stress ECG: This is when an ECG is carried out while the patient is using a treadmill or exercise bike.

 

ARE THERE ANY RISKS OR SIDE EFFECTS OF AN ECG?

An ECG is prompt, easy, and painless. It has no side effects or risks.

 

HOW IS AN ECG CARRIED OUT? DOES IT TAKE TOO LONG?

The ECG involves sensors in your arms, legs, and chest. It does not require any preparation. You can eat and drink. It requires you to remove your upper clothing and may sometimes require your chest to be shaved or cleaned. The test does not take too long; it only lasts a few minutes.