What is a Holter monitor?
A Holter monitor is a battery-operated portable device that measures and records your heart’s activity (ECG) continuously for 24 to 48 hours or longer depending on the type of monitoring. The device is the size of a small camera, and it has wires that attach to your skin. The Holter monitor and other devices that record your ECG as you go about your daily routine are called ambulatory electrocardiograms.
Why do people wear Holter monitors?
Abnormal heart rhythms and cardiac symptoms may come and go, so your doctor may want to evaluate your heartbeat over time while you go about your normal activities. You may be asked to wear a monitor if you have fast, slow or irregular heartbeats called arrhythmias.
Learn more about the Holter monitor.