Otoacoustic Emissions (OAE) Test
This test is a means of screening newborn children for any hearing problems.
Auditory Brainstem Response (ABR) Test
Audiometric brain stem response testing measures hearing sensitivity by recording electric responses from the hearing nerves and brain, using small, disc-like electrodes that are taped behind each ear and on the forehead.
The test is painless and is most often performed, while a child is asleep. Therefore, the child to be tested should not sleep during the 2 to 4 hour period preceding the test. Some children may need to be sedated, usually with oral medication, for purposes of testing. In the case of adults they need to stay still while the test is performed.
Your child may be held in your arms or will lie in a cot during testing. You may wish to bring a favorite blanket or toy as well as one or two bottles filled with a clear liquid-type beverage such as juice. Please be prepared to spend at least half a day at the clinic for purposes of this test.
If the results of the test suggest some degree of hearing loss, you may be referred for further testing.
Pure Tone Audiometry
Pure Tone Audiometry testing is done to establish the degree of hearing loss in a person. The test is performed inside a soundproof room. The person being tested is required to wear a pair of headphones and respond to hearing a tone by raising his/her hand. As the test needs the response from the person tested it cannot be done in very young children
Tympanometry
Tympanometry is not a hearing test but a procedure that can show how well the eardrum moves when a soft sound and air pressure are introduced in the ear canal. It's helpful in identifying middle ear problems, such as fluid collecting behind the eardrum. People being tested are required to sit very still during the testing.