EEG - Electroencephalogram

An EEG is a recording of the electrical activity of the brain. Fluctuating electrical activity produced by the brain is recorded as wavy lines. The EEG is a painless procedure, which takes approximately 45 minutes to 1 hour.

Small metal discs (electrodes) are attached to the patient’s scalp with an adhesive gel at predetermined locations. You may be required to sleep for a portion of the test. You may be asked to hyperventilate (Breathe through your mouth faster than normal). You will also have a strobe light, flashing at different speeds during a small portion of the test.

Hyperventilation and photic stimulation may activate abnormal activity of the brain which is then transmitted through the wires to the EEG machine and is recorded. Your doctor will interpret the recording and discuss the results with you.

The EEG is a diagnostic tool used to evaluate seizure disorders, metabolic disorders (liver, kidney dysfunction), stroke, TIA, brain infection, degenerative disorders (Alzheimer’s, Parkinson’s), head trauma (accidents, concussions), dizziness, tremor and brain tumors.

PATIENT PREPARATION

Please WASH your hair the night BEFORE the test. Make sure your hair is clean and is free from oils, gels, lotions, and hair spray. Please remove any hair accessories prior to the test. In order to perform the test we must use special products (paste, gel). we suggest you either bring a hat or a scarf for after the test and plan to wash your hair after the test.

Do not take any medications that will sedate you 24 hours before the test (Xanax, Klonopin, sleeping aids or muscle relaxers).

Please bring the FILMS of any MRI scans of your spine or brain for the doctor to review. The written report is also helpful to bring with you. Also bring any recent lab work with you.