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The electroencephalograph (EEG) is a safe painless procedure that uses a machine to translate the electrical activity of the brain into a series of wavy lines. It is used to find out if there is any abnormality in the electrical function of the brain.
Why It Is Done
An EEG may be done to:
- Diagnose epilepsy and see what type of seizures are occurring. EEG is the most useful and important test in confirming a diagnosis of epilepsy.
- Check for problems with loss of consciousness or dimetia.
- Help find out a person's chance of recovery after a change in consciousness.
- Study sleep disorders.
- Watch brain activity while a person is receiving general anesthesia during brain surgery.
- Help find out if a person has a physical problem (problems in the brain, spinal cord, or nervous system) or a mental health problem
