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BAER (brainstem auditory evoked response) How the Test is Performed: You are positioned on a reclining chair or bed and are asked to relax and remain still. Electrodes are placed on your scalp, along the vertex and on each earlobe. You hear clicking noises or tone bursts through earphones, and the electrodes pick up the brains response and record it on a graph. How to Prepare: You may be asked to wash your hair the night before the test. Infants and children: The physical and psychological preparation you can provide for this or any test or procedure depends on your child's age, interests, previous experience, and level of trust. For specific information regarding how you can prepare your child, see the following topics as they correspond to your child's age: How it Feels: There is little discomfort. Risks: There are no risks. Why this Test is Performed: The test is performed to help diagnose nervous-system abnormalities, hearing losses (especially in low-birth weight newborns), and to assess neurologic functions. Normal Values: The auditory brain stem values are in a normal range. This varies among patients and instruments used. Abnormal Results: Abnormal findings may indicate a hearing loss , multiple sclerosis , or a cerebrovascular accident ( stroke ). Additional conditions under which the test may be performed: Cost: The estimated cost is $800. Special Considerations: Not applicable. This is an illustration of the major areas of the brain. Each area has one or more specific functions.
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