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BAER - brainstem auditory evoked responseDefinitionThe brainstem auditory evoked response (BAER) test measures brain wave activity that occurs in response to clicks or certain tones. Alternative NamesEvoked auditory potentials; BAEP - brainstem auditory evoked potentials; Evoked response audiometryHow the Test is PerformedYou 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 TestYou may be asked to wash your hair the night before the test. How the Test Will FeelThere is little discomfort. Why the Test is PerformedThe test is performed to help diagnose nervous system abnormalities and hearing losses (especially in low birth weight newborns), and to assess neurological functions. Normal ResultsThe auditory brain stem values are in a normal range. This range varies among patients and instruments used. What Abnormal Results MeanAbnormal findings may indicate a hearing loss, multiple sclerosis, or stroke. Additional conditions under which the test may be performed: RisksThere are no risks.
Review Date:
4/30/2007 Reviewed By: Joseph V. Campellone, M.D., Division of Neurology, Cooper University Hospital, Camden, NJ. Review provided by VeriMed Healthcare Network. The information provided herein should not be used during any medical emergency or for the diagnosis or treatment of any medical condition. A licensed medical professional should be consulted for diagnosis and treatment of any and all medical conditions. Call 911 for all medical emergencies. Links to other sites are provided for information only -- they do not constitute endorsements of those other sites. © 1997-
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