24-Hour Holter Monitor

What is the doctor looking for?

Abnormal heartbeats during a 24 hour period.

What is the test?

A Holter monitor is a small machine that is worn on a belt or strap over your shoulder, and is designed to detect even the most intermittent, abnormal heartbeats. Electrodes are worn on the chest and connected to the machine. Holter monitors are provided to those with various forms of arrhythmia (heart palpitations), and are typically worn for a finite period of time, often 24 hours. After the monitor is taken off, your physician can review the data recorded by the monitor, and look for any abnormalities.

Where are the tests done?

After the Holter monitor is placed on your body, the test itself is performed as you go about your normal activities. Other than the presence of the monitor, you should not notice that the test is being conducted.

May I eat or drink?

Yes.

What about medications?

There are no restrictions on medications.

Will I have an IV?

No. A Holter monitor is non-invasive and painless.

Do I need special clothing?

No.

What should I bring to the test?

Nothing.

How long does the test take?

During the time you wear the monitor, you keep a diary of the symptoms you feel throughout the 24 hour period.

When will the results be ready?

The results are returned after the tape is scanned and then interpreted by a physician, generally within 72 hours.

Tell your doctor/nurse if you have …

Any symptoms develop during this test.

Will the test make me sick or sleepy?

No.

Will I receive any radiation during the procedure?

No.

What if I am pregnant or breast-feeding?

There are no risks if you are pregnant or breast-feeding.