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What is an EEG?

An Electroencephalography (EEG) is a test that measures brain wave activity (brain function). Physicians may order this test to check for seizures or other brain problems. For this test, small metal disks (electrodes) are attached to the scalp with water-based gel or paste. During the test, wavy lines (waveforms) appear on a computer screen. A neurologist will read the EEG waveforms to help diagnose any abnormalities with the brain.

Test Tips

Prepare for your test as advised by your physician. Be sure to wash and dry your hair; but don't use any hairstyling products. Take your routine medications, unless you are told not to. Avoid caffeine, but eat meals as usual. Arrange for someone to drive you home after the test, if needed.

If you would like more information, or have any questions, about the EEG lab, please call 219-866-5141, extension 2452.


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