Holter Monitor

About the Test

A Holter monitor is a small computer that is used to record your heart rhythm over a twenty-four hour period.


There is no radiation used in performing this test.

The recording is analysed for any heart rhythm problems that may cause palpitations, dizziness or fainting.

Your Holter scan, when performed at GS Oldfield Cardiology, is locally reported and  the tracings are available to our cardiologists. They are stored on-site and should your referring doctor require either a full copy or to discuss the result with one of our cardiologists, they are able to do so.

Scans that are performed locally but, have the results sent to other cities for reporting do not offer this level of service to you or your doctor.

Test Preparation

The Holter monitor is a small computer box that you will be required to wear around your waist for 24 hours. During this time, you will not be able to shower or get the unit wet.

The clothing you wear is important when you come to our rooms to have your holter fitted.


Men: You will need to wear a shirt that buttons through the front. Please do not wear a singlet.

Ladies: You should wear a 2-piece outfit such as a blouse that buttons through the front and skirt or slacks. One-piece undergarments are not suitable.

During your Test

The monitor is attached to your person by a belt. The monitor will record your heart rhythm throughout the 24 hours and the nurse will show you a button on the monitor that you should press if you experience any specific symptoms.

It is important that you follow your normal routine while wearing the monitor. However, dropping the monitor, getting it wet or playing very active sport while wearing it may damage the monitor and, in turn, invalidate your test results.

If an electrode falls off or the unit starts making noise, please call our rooms and ask to speak to one of our nurses.

After  your Test

You will need to return to our rooms after 24 hours of wearing the monitor. At that stage, the monitor will be removed and we will collect your diary.

The recording is then analysed by a computer and reported by a cardiologist to your doctor. You will need to make an appointment to see your doctor to discuss the results. 

We are here to assist.