McLaren Health Care
Ambulatory EEG

Ambulatory EEG

If you have seizures or other suspected events that have not been detected by a routine EEG, your doctor may request that you have an ambulatory electroencephalogram (EEG). An ambulatory EEG is a continuous recording of your brain's function. You will wear the monitor 24-72 hours while you go about your usual daily activities.

To prepare for this test, wash and dry your hair and wear a shirt that opens in the front. Bring a hood or scarf to wear home.

During the ambulatory electroencephalogram, the technologist will measure and scrub your scalp, and electrodes will be placed as was done during your routine EEG. A small receiver will also be placed on your scalp and your head will be wrapped to hold everything securely in place. You will also wear a light-weight monitor around your waist or over your shoulder. You will be asked to keep a diary of any symptoms that occur during the test and to return to have the monitor removed after the prescribed period of time. Your ambulatory EEG will be scanned onsite by a registered technologist and a neurologist will generate a report, which will be sent to your physician.