How it Works
The Holter monitor is small. It's slightly larger than a deck of playing cards. Several leads, or wires, are attached to the monitor. The leads connect to electrodes that are placed on the skin of your chest with a glue-like gel. The metal electrodes conduct your heart's activity through the wires and into the Holter monitor, where it's recorded.
You wear a small pouch around your neck that holds the monitor itself. It's important to keep the monitor close to your body during the testing period to make sure the readings are accurate. Your doctor will show you how to reattach electrodes if they become loose or fall off during the testing period.
You'll get instructions that explain how to take care of your monitor and what not to do while you're wearing it. It's important to avoid bathing, showering, and swimming while you're wearing the monitor.
You're encouraged to participate in your normal activities during the 24-hour Holter test. You'll be directed to attach your monitor if you're allergic to any tapes or adhesives.
A 24-hour Holter monitor test is painless. However, be sure to record any chest pain, rapid heartbeat, or other cardiac symptoms you have during the testing period.