The BERA test means “measuring hearing responses from the brainstem.”
It is used to check the function of the auditory pathways along the hearing nerve and the brainstem.
It is especially performed in newborn babies, children, people with delayed speech, and those suspected of hearing loss.
How is the BERA test performed?
1. The patient should be calm or asleep (babies are usually asleep).
2. Adhesive electrodes are placed on the scalp (forehead, temples, and behind the ears).
3. Gentle clicking sounds are sent to the ears (through headphones).
4. The responses from the brainstem and nerves are measured and analyzed by a computer.
5. The procedure takes about 20–30 minutes.
6. For babies, sedation (a calming medicine) is sometimes needed, but in most cases, sleep is enough.
Who needs the BERA test?
• Newborns who did not pass the screening BERA test
• Babies at risk of hearing loss (family history, high bilirubin, premature birth, etc.)
• Children with delayed or impaired speech
• People who need evaluation for hearing aids or cochlear implants
• Adults suspected of having an acoustic nerve tumor (acoustic neuroma)