What is an EEG?

An electroencephalogram (EEG) is a painless procedure that uses small, flat metal discs (electrodes) attached to your scalp to detect electrical activity in your brain. Your brain cells communicate via electrical impulses and are active all the time, even when you are asleep.

Why am I being sent for an EEG?

An EEG is one of the main diagnostic tests for epilepsy. An EEG may also play a role in diagnosing other brain disorders.

When will I know the test results?

Technologists conduct the test. Doctors trained to analyze EEGs interpret the recording, and the results are sent to the doctor who ordered the EEG. The technologist who conducts the test does not have your results. Please contact the ordering physician with any questions you have regarding your results.

Patient EEG Instructions:

Your doctor has ordered an EEG. This test is often requested when there is a question of a seizure disorder, or episodes of confusion and unresponsiveness. It is useful to obtain an EEG recording with the patient awake, drowsy and in light sleep.

•  Please arrive 15 minutes before your appointment

•  This study is not painful or invasive and involves placing small electrodes on your head with sticky paste to evaluate brain waves while you rest comfortably. These electrodes are removed after the study.

•  Make sure hair is clean, dry, and free of styling products such as gels and conditioners.

•  Wear comfortable clothing.

•  YES, YOU CAN EAT BREAKFAST, but avoid caffeine-containing beverages such as coffee, tea, or colas 8 hours before the exam.

•  YES, take your medication as prescribed (unless given special instructions by your doctor).

If you have any questions or concerns, please call the office at (626) 535-9344.