EEG (Electroencephalogram)

EEG (Electroencephalogram) An EEG is a test that records the electrical activity of the brain. The test may be done to check for: 

  • Seizures
  • Confusion or changes in behavior
  • Head injury or disease
  • Changes in level of unconsciousness
Arrive on time for your test:  Plan on being here about 2 hours

To Prepare

  • The night before your test:
    • Sleep as much as you want
    • Sleep only half the amount of time that you sleep other nights. For example, if you sleep 8 hours a night, sleep 4 hours the nightbefore your test.
    • Do not Sleep
  • Avoid caffeine drinks such as coffee, tea and soft drinks after midnight before the test.
  • Wash your hair before the test. Do not use oils, sprays and lotions

During the test

  • Small pads called electrodes are put on your scalp with paste. The pads read the electrical activity of your brain and send it to a machine.You will feel no pain
  • Be asked to breathe deep and fast through your mouth
  • Be shown a flashing light for a short time
  • Sleep

After the test

  • The pads and paste are taken off your scalp. You can wash your hair at home with shampoo to remove the rest of the paste.
  • Test results are sent to your doctor. Your doctor will share the results with you.