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How does the Holter monitor work?

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This battery-operated device is about the size of a postcard or digital camera. It continuously records your heart's electrical activity for at least 24 to 48 hours. Some newer models can record for up to 2 weeks.

Tiny wires connect the monitor to patches called electrodes that go on your chest. If you have a lot of chest hair, a technician may need to shave some off so the electrodes can stick firmly to your skin. Sometimes the patches can fall off, so you might need extra tape.

You can wear the monitor over your shoulder like a purse, around your neck like a camera, or attached to your belt. Or you can carry it with you in a pocket. You won't take it off during the test period unless you're in the bath or a pool.

From: Why Do I Need a Holter Monitor? WebMD Medical Reference

Sources

American Heart Association: "Holter Monitor," "Electrocardiogram (ECG or EKG)," "FAQs About Atrial Fibrillation," "Prevention and Treatment of Arrhythmia," "FAQs of Atrial Fibrillation (AFib or AF)," "About Arrhythmia," "Warning Signs of a Heart Attack."   

Johns Hopkins University: "Holter Monitor."

NIH: "Who Needs a Holter or Event Monitor?"

Zimetbaum, P. , Oct. 19, 2010. Circulation

Reviewed by James Beckerman on June 01, 2018

Sources

American Heart Association: "Holter Monitor," "Electrocardiogram (ECG or EKG)," "FAQs About Atrial Fibrillation," "Prevention and Treatment of Arrhythmia," "FAQs of Atrial Fibrillation (AFib or AF)," "About Arrhythmia," "Warning Signs of a Heart Attack."   

Johns Hopkins University: "Holter Monitor."

NIH: "Who Needs a Holter or Event Monitor?"

Zimetbaum, P. , Oct. 19, 2010. Circulation

Reviewed by James Beckerman on June 01, 2018

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Why might your doctor recommend a Holter monitor?

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