Print this page

Brainstem Auditory Evoked Potential

What is a Brainstem Auditory Evoked Potential (BAEP)?

This is a painless test that records the function of a nerve pathway between the ear and the brain. This is achieved by using a clicking noise through a set of headphones. Recording this information will assist your consultant in the diagnosis and management of your complaint or condition.

A Clinical Physiologist will be performing your test, although staff in train- ing may be present during your investigation. This will be explained at the time of your appointment and consent for this will be discussed with you.

What should I do before the test?

  • Please ensure your hair is clean and do not use any hair products, such as gel or hairspray
  • Please continue to take your medication as normal and bring along a list of your current medication.
  • Do not listen to excessive noise for 24 hours prior to the test.

You are welcome to bring a friend or relative to accompany you to your appointment.

What will happen during the test?

The Clinical Physiologist will explain each aspect of the test to you, answer any questions you may have and obtain your consent for the test.

They will then ask a few questions in order to obtain a clinical history from you.

Several small electrodes will be placed on your head which will be stuck on with a sticky paste.

You will put headphones on and you will hear a series of clicking noises lasting a few minutes.

The whole test will take around 45 minutes.

What will happen after the test?

The electrodes will be taken off with warm water. Your hair will feel sticky where the electrodes have been placed and will require washing when you return home.

You will not be told any results after the test. The results will go back to your Consultant for the test within 2-3 weeks.

Are there any risks?

No, there are no reported risks to this test.

If for any reason you are unable to make this appointment or have any specific requirements or questions (before or after the test) please ring 0151 556 3416

  • Last Updated:
    01 October 2022
  • Review Date:
    01 October 2026
  • Author:
    Beverley Haworth
  • Summary:

    This is a painless test that records the function of a nerve pathway between the ear and the brain.

  • Related Service:

Related content