OSF Saint Luke Medical Center

Kewanee, IL

Holter Monitor

A stethoscope helps your doctor listen to your heart for a few minutes. A stress test may see how you do over a period of hours. But what if your doctor wants to test your heart for longer? 

That’s when you’ll wear a Holter Monitor, a small device  that allows your healthcare team to obtain a 24 to 48 hour reading of your heart's electrical activity. This test can help detect problems which would be difficult to identify in a shorter period of time.

How to prepare

  • Please bathe before your appointment… and don’t plan on any swimming! It is very important to keep the monitor dry.

What to expect

  • Five small electrodes (patches) are placed on your chest and connected to the recorder.
  • You”ll wear a small tape recorder with a carrying case and strap for 24 or 48 hours.
  • You'll be asked to keep a diary of all the activities you do while wearing the monitor.
  • It's particularly important to record in the diary any symptoms of palpitations, skipped heartbeats, shortness of breath, chest pain or lightheadedness.

This is a painless, non-invasive procedure. Some patients dislike carrying the recorder at all times; protecting your heart, however, is definitely worth the inconvenience.

While wearing the device, avoid:

  • Electric blankets
  • High-voltage areas
  • Magnets
  • Metal detectors

How do I find out my results?

The Holter Monitor results will be evaluated by a physician specially trained in cardiology and then presented to your healthcare provider.

Hours/How to Reach Us

Holter Monitoring is offered seven days per week and scheduled through Central Scheduling by calling (309) 852-7550.