Unlike an event recorder, a Holter monitor is a device that continuously records the heart’s rhythms. It is worn for 24 – 48 hours during normal activity to see how the heart responds. It can help diagnose many issues including atrial fibrillation or flutter, palpitations, slow heart rate and more. You may also be asked to wear a Holter monitor after a heart attack or before you start a new heart medicine.
For this test, electrodes that are attached to the monitor are placed on your chest. You then simply carry the Holter monitor around in a pocket or pouch while you resume your normal activities. Your doctor will evaluate the results after 24 – 48 hours.