What to expect for an EEG

What is an EEG?
An EEG (electroencephalogram) measures the electrical activity in your brain. Your technician will fit you with a special cap and then attach flat metal discs called electrodes to your scalp with a special glue. The electrodes record your brain activity and send the information through wires to the EEG machine. During the test, you may be asked to breathe deeply or to close your eyes while a bright light is flashed in front of you. Falling asleep during the EEG test is fine.

Why do I need an EEG?
An EEG helps your doctor determine whether you have epilepsy, syncope, migraine, dementia, or other disorders that affect the brain waves.

How long will it take?
EEGs may take anywhere from 30 minutes to two hours.

Will it hurt?
The EEG test is painless.

What should I do to prepare?

  • Take your usual medications unless told otherwise.
  • Do not consume any alcohol or illegal drugs the day of the test.
  • Wash your hair the night before or the day of the test, but do not use any conditioner, hair creams or oil, gel, or hairspray. Make sure that your hair is clean and free of grease the day of the test.
  • Do not braid or constrain your hair the day of the test.
  • If you were asked to stay up all night before the test, please have someone else drive you to the appointment.
  • If you were not asked to stay up all night, get a good night’s sleep before the test.

Required Deposit
A $40 deposit is required to schedule an EEG at CoastNeuro. The deposit may be made by phone with a credit or debit card, or in person at our office with a check or cash. When you arrive for your appointment, we will refund your deposit; if you miss your EEG appointment without notifying our office at least one full business day in advance, you will forfeit your deposit.

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