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ChristianaCare
Rehabilitation Services

Diagnostic Audiology

More than 28 million Americans experience some level of hearing loss. The condition affects people of all ages and whatever its cause, it’s a frustrating problem that makes communication difficult. Our audiologists are skilled in assessing the degree and cause of hearing loss through today’s most advanced hearing test capabilities:

Auditory brainstem response testing

In this study, we’ll check the electrical nerve impulses that carry sound from the inner ear to the brain by placing electrodes on your ear lobes or behind each ear, as well as on your forehead. The clicking sounds you hear through earphones help our audiologists study interruptions in nerve impulses to your brain.

Distortion produce otoacoustic emission

With this test, audiologists place a tiny microphone in your ear canal opening to measure how well outer hair cells in your inner ear are working.

Electroneuronographys

Small electrodes placed on your face on either side of your nose and on your forehead trigger facial nerves, allowing the audiologist to measure muscle weakness in your face due to problems such as Bell’s palsy.

Pure-tone air and bone conduction and speech audiometry

Measuring your ability to hear tones ranging from low to high helps the audiologist determine degree and type of hearing loss.

Tinnitus evaluation

To help identify degree and cause of tinnitus, your audiologist will perform a complete hearing exam, that may also involve movement studies of your eyes, jaw, neck, arms and legs or imaging tests, such as CT or MRI scans, to help find underlying disorders causing that persistent sound in your ears.

Tympanometry

Using varying amounts of air pressure in the ear canal, tympanometry helps audiologists assess how well your eardrum and middle ear are working. Sound waves transmitted to the tympanic membrane, or eardrum, measure the energy of the reflected sound and provide valuable clues to the cause and degree of hearing loss or tinnitus.