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Alternative Names Return to top
Evoked auditory potentials; BAEP - brainstem auditory evoked potentials; Evoked response audiometryDefinition Return to top
The brainstem auditory evoked response (BAER) test measures brain wave activity that occurs in response to clicks or certain tones.
How the Test is Performed Return to top
You lie on a reclining chair or bed and remain still. Electrodes are placed on your scalp and on each earlobe. The earphones give off a brief click or tone. The electrodes pick up the brain's responses to these sounds and record them.
How to Prepare for the Test Return to top
You may be asked to wash your hair the night before the test.
How the Test Will Feel Return to top
There is little discomfort.
Why the Test is Performed Return to top
The test is performed to help diagnose nervous system abnormalities and hearing losses (especially in low birth weight newborns), and to assess neurological functions.
Normal Results Return to top
The auditory brain stem values are in a normal range. This range varies among patients and instruments used.
What Abnormal Results Mean Return to top
Abnormal findings may indicate a hearing loss, multiple sclerosis, or stroke.
Additional conditions under which the test may be performed:
Risks Return to top
There are no risks.
Update Date: 4/30/2007 Updated by: Joseph V. Campellone, M.D., Division of Neurology, Cooper University Hospital, Camden, NJ. Review provided by VeriMed Healthcare Network.
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Page last updated: 25 September 2008 |