Electroencephalogram EEG (1310)

Key points below

What is an electroencephalogram (EEG)?

The EEG shows the doctor how your child’s brain is working. It will help the doctor diagnose your child’s condition. The EEG picks up tiny electrical impulses in the brain and records them while your child is awake and asleep. The doctor looks at a pattern of impulses for clues on how to treat your child’s condition.  The EEG does not give off electricity.  It does not shock or hurt your child.

What do I need to know before the EEG?

If your child is not able to sleep for the test, the EEG may need to be done again.

Age and sleep instructions

Child with EEG

How is the EEG done?

Results are sent to the doctor who ordered the EEG in about 7 to 10 days.

NOTE It is very important that your child sleeps for the EEG. Sleep medicine (sedation) is not used.  If your child cannot sleep during the EEG, the test may need to be done again.  Follow the sleep instructions chart the night before the EEG. 


Call your child’s doctor, nurse, or clinic if you have any questions or concerns. Call Clinical Neurophysiology at (414) 266-6828 if:

  • You are running late.
  • You cannot keep your child’s appointment.
  • Your child has special health care needs that were not covered by this information.