If you or your child has been referred for a diagnostic audiologic evaluation, it means that hearing loss needs to be ruled out or further examined. The diagnostic audiologic evaluation may be indicated for individuals who did not pass an initial hearing screening.
The evaluation is done to determine if a hearing loss is present, and if so, to detail the type and severity of the hearing loss. It also may provide insight in to the cause of the hearing loss as well as provide guidance for the audiologist in making appropriate treatment recommendations.
What Tests will be Done?
The specific tests done during the evaluation will depend on the patient's age, and what is known already about their hearing status. These various tests will the degree of hearing loss, the type of hearing loss, and the conditions of the ear canal and middle ear. The audiologist will also determine if the hearing loss is conductive (middle or outer ear problem) or sensorineural (inner ear problem or central processing difficulty of the brain).
A diagnostic audiologic evaluations includes pure-tone testing, bone-conduction testing, and speech testing.
Pure-tone Air and Bone Conduction Testing
Pure-tone air conduction testing determines the quietest tones that a person can hear at different frequencies, both low and high. Bone conduction testing is similar to pure-tone air conduction testing. A different type of headphone is used during bone conduction testing, and the results help the specialist determine if the hearing loss is originating from the outer/middle ear or from the inner ear.
A speech reception threshold (SRT) test is often used with older children and adults to confirm the results of a pure-tone test. This test determines the lowest level at which the patient can recognize words or speech stimuli.
The audiologist may also perform otoscopy (examining the ear canal) and tympanometry (test of the middle ear) to determine the health of the ear canal and the middle ear.
Specialized tests exist for infants and young children, as well as children and adults with developmental and cognitive impairments. These more-specialized tests allow the audiologist to test the auditory system when the patient is not able to actively participate in the tests or evaluation.
HAC cell phone accessories are beneficial to hearing aid users for several reasons. They put distance between the hearing aid and the cell phone, which can cut down on any buzzing or feedback, as well as decrease any interference between the two devices.
Some HAC accessories can give you hands-free cell phone usage, which is especially important if you plan on using your cell phone while driving. You may also be able to use the speakerphone function on some devices if you use the microphone mode on your hearing aid.
All major cell phone manufacturers are now required to make HAC cell phones available to hearing aid users, and many also have HAC cell phone accessories available as well.
It's a good idea to visit your cell phone carrier's local store and inquire about HAC phones and accessories, as well as try them out in the store with your hearing aid before making a purchase. Trying the phone with the device will give you a good idea of how well the accessory will work for you.