Electroencephalogram (EEG): Why It Is Done
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Why It Is Done
An electroencephalogram (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 dementia.
- Help find out a person's chance of recovery after a change in consciousness.
- Find out if a person who is in a coma is brain-dead.
- Study sleep disorders, such as narcolepsy.
- 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.
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| Last updated: | September 01, 2006 |
|---|---|
| Author: | Jan Nissl, RN, BS |
| Reviewed By: | Patrice Burgess, MD - Family Medicine, Barrie J. Hurwitz, MD - Neurology |
| Editors: | Susan Van Houten, RN, BSN, MBA, Tracy Landauer |
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