What to Expect from a Complete Hearing Test
If you are experiencing hearing loss, before you have a hearing test
administered, it is important that you first visit your physician or an
ENT to find out if there is a medical cause. The doctor will be able to
assess your situation and may be able to treat your underlying issues,
such as an ear infection, a blockage, or even a hole in your eardrum. Once
all of your medical issues have been resolved and your doctor determines
that you could potentially benefit from a hearing aid, he or she will then
likely recommend that you have a complete round of hearing tests
administered.
Hearing tests can be performed by an audiologist or a licensed hearing
aid fitter, as well as by a physician. Your doctor may be able to give you
a referral, and your insurance will likely cover the cost of your hearing
test, although you should speak with your carrier to get confirmation. In
addition, certain hearing aid vendors may also make the hearing test
available free of charge. However, free hearing tests may come along with
high sales pressure to buy your hearing aid from that particular vendor,
so enter into that situation with caution. If you ever feel any sales
pressure, you have the right to leave.
The Beginning of Your Visit
When you go to the audiologist or fitter's office for your hearing
test, you will first have a discussion with the test administrator about
your medical history as well as your history of hearing loss in general.
You may be asked questions about noise exposure, medications you are
taking, any ear surgeries you may have had, any diseases of the ear that
you have or had, and hereditary factors. It may be helpful to bring notes
with you to make sure that you cover everything comprehensively before the
hearing test begins.
Upon completion of this discussion, you will be put through a series of
seven different hearing tests to gauge different aspects of hearing loss.
Different audiologists and fitters may do the following hearing tests in a
slightly different order, but the sequence below outlines what is most
common. It is extremely important that you have all of these tests done to
create the most complete picture of your hearing - and all of these
hearing tests can be performed in a single office visit.
The First Step - Tympanometry
The first step in your hearing test is tympanometry. Tympanometry tests
the movement of the eardrum. During this painless test, you need to do
nothing but relax and let the readings be taken. The hearing test
administrator will begin by placing the tip of a handheld tool into your
ear. This tool will change the air pressure inside your ear and will also
produce a clear tone. It will then measure how your eardrum responds to
the pressure change and to the sound. This test will help to set a
baseline for the rest of the hearing tests by letting the administrator
know if any specific medical issues, such as an ear infection or a
blockage of your Eustachian tube, should to be taken into consideration.
The Next Step - Hearing Tests that Require Headphones
Next, you will be placed in a soundproof room and given headphones
through which the administrator will speak to you or play sounds. You will
then be given a series of hearing tests through these headphones,
including a pure-tone test, a speech reception threshold test (SRT), a
most comfortable listening level test (MCL), an uncomfortable loudness
level test (UCL), and a word recognition test, also commonly known as a
speech discrimination test.
First, you will be given a pure-tone hearing test, which can help to
determine the type, degree, and configuration of your hearing loss.
Pure-tone thresholds (PTTs) determine the softest level at which you can
hear the tone at least 50 percent of the time. For this hearing test, you
will be asked to indicate each time you hear a tone in the headphones by
either raising your hand or pressing a button.
The SRT test will be administered next. During this hearing test, you
will be asked to repeat several two-syllable words while the intensity is
decreased in order to find the lowest level at which you are able to
repeat half of the words. Then, the MCL test will be performed to
determine the loudness at which you prefer to hear by having you identify
the level at which it is easy and comfortable to hear sounds. The UCL test
(also called the upper level of comfortable loudness) will then do the
opposite and will find the loudest level that you would ever wish to
listen to - with anything louder being painful. During this portion of the
hearing test, the volume in the headphones will slowly be raised, and you
will be asked to indicate when the voice you hear has reached this upper
level. These three hearing tests can give great insight into your level of
hearing loss.
You will then be given the word recognition/speech discrimination test,
in which you will listen to a set of single syllable, phonetically
balanced words at a comfortable hearing level. You will then be asked to
repeat these words back to the administrator one at a time. The results of
this portion of the hearing test are critical to helping you establish a
realistic expectation of what a hearing aid can do for you.
The Last Step - Bone Conduction
Finally, you will remove the headphones for the last of the hearing
tests - the bone conduction test. A small oscillator (which looks like a
small disc) will be placed on the bone behind your ear, and it will
painlessly stimulate the bones of your skull, which, in turn, stimulate
your inner ear. You will again be asked to indicate when you hear a tone
as the sound level is raised and lowered to find a level at which you can
hear the sound at least half the time. This hearing test is used to find
out whether or not your hearing loss is affected by issues relating to
your inner ear.
The Results of Your Hearing Test
Once your hearing tests are complete, the results should be available
immediately, and the administrator should discuss them with you and put
them into the context of your every day life. The hearing tests will be
able to determine if your hearing loss is conductive (relating to the
outer and/or middle ear), sensory neural (relating to the inner ear hair
cells and nerves), or a combination of the two. The hearing test results
will also tell you whether your hearing loss is mild, moderate, severe or
profound. And your speech discrimination results will give you a practical
look at what level of speech understanding you will be able to achieve
with a hearing aid, because even with the best hearing aid you cannot
achieve a level of understanding that is better than your discrimination
score.
If the administrator is also a hearing aid dispenser, he or she may
then make recommendations as to what type of hearing aid would work best
for you, and may even suggest two or three different models. Remember -
you are under no obligation to purchase your hearing aid from the
administrator of your hearing test. Because of HIPAA regulations, you are
entitled to a copy of the results of your hearing tests without making a
purchase. Remind the administrator of this if any issues arise, and make
sure that your copy of your results also includes the date of the exam and
the administrator's name.
Armed with the results of your hearing tests, you can then move forward
toward making the purchase of a quality hearing aid that meets your needs.
Take your time, ask a lot of questions, and shop around for the best
product at the best price. The hearing test administrator may be the
person you return to when making your purchase, and he or she may not. The
most important thing is to make sure that when you finally buy your
hearing aid, the dispenser is taking the results of your hearing tests
into consideration and is helping you to make a purchase that will help
improve your hearing for years to come.
About the Author
Henry Smith is the founder of America Hears, a leading manufacturer and
distributor of hearing aids online for over 26 years. The company recently
rolled out its new FreedomAD product line, which utilizes the latest
generation of ADRO hearing aid technology. Henry started the company in
1979, following a 15-year career at the Pennsylvania School of the Deaf,
including his work as an Acoustic Technician. Henry is a pioneer in the
use of computers and the Internet to allow customers to have a hands-on
approach to the tuning and adjusting of their digital hearing aids. He
strives to be customer-centric in all aspects of his work.