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Evoked Potentials, Brainstem Auditory


Why is this procedure done?


The brain is the center of the nervous system. It controls everything you do. Your ears collect sounds and process them. Then, small electrical sound signals are sent to your brain. These are what you hear'. ‚  
Doctors have a test to see how your brain responds to clicks or sounds. It looks at the small electrical signals. The test is brainstem auditory evoked potentials. It is also called BAEP. Small sticky pads are put on your scalp to measure the electrical signals that happen after the noise is made. ‚  
Your doctor may to do this test to: ‚  
  • Detect problems with the nervous system and hearing loss
  • Find out how well the nervous system works
  • Reduce the risk of injury to the hearing nerve and brain during surgery

What will the results be?


The test will help the doctor learn more about your hearing and if there are other problems. ‚  

What happens before the procedure?


  • Ask your doctor what you need to do before the test.
  • Wash your hair the night before the procedure.
  • Do not apply anything to your hair before the procedure.
  • If you wear a hearing aid or other hearing devices, bring them with you.
  • Young children may need some help to relax and remain still during this test. It may also be done while a child is napping.

What happens during the procedure?


  • You will lie on a reclining chair or bed and remain still.
  • You will have 4 small sticky pads on your head.
  • You will put earphones over your ears.
  • You will hear a clicking sound in one ear at a time for few minutes. You may or may not be able to hear the sounds.
  • After the test, the sticky pads will be taken off.

What happens after the procedure?


  • You may go home after the test.
  • You may have minor skin irritation after the test.

What care is needed at home?


  • Ask your doctor what you need to do when you go home. Make sure you ask questions if you do not understand what the doctor says. This way you will know what you need to do.
  • Wash your hair with mild shampoo and water. This will help to get rid of any sticky glue from where the pads were on your head.
  • You can return to your normal activities after the test.

What follow-up care is needed?


Your doctor may ask you to make visits to the office to talk about the results of the test. Be sure to keep these visits. You may need more tests. ‚  

Where can I learn more?


National Institute of Neurological Disorders and Stroke ‚  
http://www.ninds.nih.gov/disorders/misc/diagnostic_tests.htm ‚  

Consumer Information Use and Disclaimer


This information is not specific medical advice and does not replace information you receive from your health care provider. This is only a brief summary of general information. It does NOT include all information about conditions, illnesses, injuries, tests, procedures, treatments, therapies, discharge instructions or life-style choices that may apply to you. You must talk with your health care provider for complete information about your health and treatment options. This information should not be used to decide whether or not to accept your health care providers advice, instructions or recommendations. Only your health care provider has the knowledge and training to provide advice that is right for you. ‚  

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