Investigation of choice in assessing hearing loss in neonates MCQ | AIIMS MCQ for Medical PG Preparations .. NIME

Which of the following is the investigation of choice in assessing hearing loss in neonates?
A. Impedance audiometry
B. BAER
C. Free field audiometry
D. Behavioralaudiometry

Ans. B.

• The Brainstem auditory evoked response (BAER) test measures responses in brain waves that are stimulated by aclicking sound to check the central auditorypathways of the brainstem.

The test can be done for all ages.

• Infant test or (Birth to 1 year) •

• Toddler test or (1 to 3 years)

• Preschooler Test or (3 to 6 years)

• School age test or (6- 12 years)

• Adolescent test (12 to 18 years) ‘

• The test is performed to help diagnose nervous system abnormalities, hearing losses (especially in low-birth weight newborns), and to assess neurologic functions.

• The auditory brain stem values are in a normal range.

• This range varies among patients and instruments used.

• In a normal person, 7 waves are produced in the first 100 milliseconds