Holter Monitor

Holter monitoring is a painless way to record your heartbeat away from the doctor’s office. It is a small electrocardiogram (ECG) that you carry with you. Holter monitoring records your heartbeat for your doctor to review at a later time. You can receive your heart monitor in a hospital, test center, or doctor’s office.

Your Holter Monitor

When you receive a Holter monitor, small, painless pads (electrodes) are put on your chest. These connect to the lightweight unit, which attaches to a beltor shoulder strap. You need to keep the device on for at least 24 hours andcomplete a diary. While wearing the monitor, follow these tips:

• Try to sleep on your back.
• Don’t take a shower. A sponge bath is okay.
• Follow your normal routine. Don’t avoid stress, work, or exercise.
• If an electrode falls off or the unit makes noise, call to see what you should do.

When Using a Monitor

Stay away from electric blankets, magnets, metal detectors, and high-voltage areas such as power lines. Theymay affect the recording.

Holter Monitor Diary

• Write in the time of day for each entry you make.
• Note each change in activity, including when you take medicine.
• Note any symptoms you feel.

*Also see What is Holter Monitoring in the Patient Education section of our website.
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All rights reserved. This information is not intended as a substitute for professional medical care.
Always follow your healthcare professional’s instructions.