Electrocardiogram (ECG or EKG)

An electrocardiogram (ECG or EKG) is a non-invasive medical test that is commonly used to evaluate the heart's electrical activity. It is one of the simplest and fastest tests available for assessing the overall health of the heart. During an ECG test, small, plastic patches called electrodes are placed on the skin in specific locations including the chest, arms, and legs. These electrodes are connected to an ECG machine via lead wires.

The purpose of the ECG is to measure and record the electrical signals generated by the heart as it beats. These signals provide valuable information about the heart's rhythm and any potential abnormalities or irregularities. The electrical activity is then interpreted by a healthcare professional, often a specialize ECG physician, who reviews a certain type of graph or waveform generated by data from the electrodes.

It is important to note that an ECG does not involve sending electricity into the body. Instead, it simply measures the electrical impulses that naturally occur within the heart. The procedure itself is painless and typically takes only a few minutes to complete. The results of an ECG can provide valuable insights into the functioning of the heart and help healthcare providers diagnose various heart conditions or monitor treatment effectiveness. Overall, an electrocardiogram is a valuable tool in assessing cardiac health.

Where to go for an ECG Test

ECGs are performed in most of our patient service centers as well as, some rural health center locations.

APL patient service centers do not perform STAT ECGS.

Physicians should not send symptomatic patients to the Patient Service Centers (PSC) for STAT ECG testing.

Symptomatic patients should be directed to the nearest Emergency Department.

If your physician has ordered a STAT ECG because you are suspected of having acute coronary syndrome or serious arrhythmia. DO NOT GO TO A PSC. Proceed directly to the closest hospital emergency department.

How to prepare for an ECG test

  • Appointments are encouraged but not required when taking an ECG test. Information on booking appointments can be found APL’s online booking page
  • On day of testing do NOT use lotions or creams as they can keep the electrodes from making contact with your skin and may interfere with the reading
  • Wear comfortable clothing that can be easily removed or adjusted to provide access to your arms; legs and chest.

Taking an ECG test at one of our locations

Our staff will:

  • Accompany you to an ECG room
  • Ask you to turn off your cell phone
  • Ask you to undress from the waist up
  • Ask You to roll your pant legs up to just below your knees
  • Provide you with a paper vest or gown. (Put it on with the opening in the front.)
  • Ask you to state and spell your first and last name and give your date of birth
  • Ask you to lie flat on the ECG bed
  • Staff will attach 10 electrodes with adhesive pads to the skin of your arms; legs and chest

Additionally:

  • A family member or person accompanying the patient can remain with the patient upon the patient’s request.
  • The tracing results will be sent to your physician.
  • Any questions regarding your ECG should be directed to you physician.
  • Staff are unable to provide results or determine why your physician has requested an ECG.

Visit MyHealth.Alberta.ca for more information.