Diagnostic Hearing Testing
A number of diagnostic tests are currently available for assessing hearing sensitivity. Based on the symptom of the person, the audiologist will recommend specific tests. Here are some common tests that may be requested.
Pure tone audiometry:- This test requires a pair of headphones and pressing a button every time a sound is heard. This test measures hearing thresholds at different frequencies. This is twenty minutes test.
Tympanometry / Middle Ear Analysis:- This is a simple five minutes test that checks the middle ear problems and the eardrum. There is a tone presented in the ear. A sensation of mild pressure may also be felt in the ear during this test.
Speech Audiometry:- This is a hearing test designed to check if the person is able to recognize speech. A set of words will be heard by the patient and then they must repeat them back to the audiologist. The standardized word lists are also presented at different intensities.
Auditory Reflex test:-This is a test that really doesn’t require any external inputs from the person. For about twenty minutes they sit and listen to beeping sounds. The computer administrating the test automatically checks for the nerve signals that go to and from the brain.
Oto acoustic emission:-This is a test for the outer hair cell function of the cochlea or inner ear. the person needs to sit quietly and listen to sounds like hums and clicks. The test takes about twenty minutes to administer as results are recorded automatically.
Auditory brainstem response:- This audiology test helps to check if the hearing nerve is functioning normally. The person will have to lie down and relax for about twenty minutes. While lying down still the person will have to listen to click sounds. The entire test takes about half an hour to perform.