Exam (elaborations)
HEARING AID DISPENSER PRACTICAL EXAM QUESTIONS AND ANSWERS
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HEARING AID DISPENSER PRACTICAL EXAM QUESTIONS AND ANSWERS
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Name: Score:59 Multiple choice questions
Definition 1 of 59
Explain steps involved in daily biological check:
1. Proper bracing technique (hands and head move as one)
2.
3.
. Landmarks on the TM
. 4 quads of the TM
"I need to use this light to look in your ears. It might be uncomfortable, but it shouldn't
hurt. I just need to take a peek at your ear canal and ear drum and make sure it's ok to
test your hearing. Please hold still while I take a look."
● Select the cold running speech passage and calibrate using the VU meter and the
calibration tone. The VU indicator should be at
0 dB.
● Set the attenuator at SRT plus 20 dB.
● Slowly increase the intensity of the speech stimulus while monitoring the member's
listening level preference.
● Record the MCL on the audiogram in dB HL.
● Repeat procedure on the other ear.
1. Disinfect work area
2. Check equipment for static, crackling, or distortion.
3. Sound check: Sweep all of the frequencies and intensity levels. Listen for any
anomalies.
4. Calibrate mic to the head set.
5. Speech calibrations.
,Definition 2 of 59
Rule for masking Air Conduction:
Ambient noise may significantly impair close communication. -May begin to exhibit
articulation problems with own speech.
Deliver narrowband noise masking to the NTE when there is a 15 dB or greater difference
between the measured AC and BC thresholds of the TE @ 500, 1000, 2000, or 4000 Hz.
(an Air-Bone Gap)
Deliver narrow band masking noise to the non-test ear when there is a 40 dB difference
(headphones) or 70 dB (inserts ear phones) between the ears at any frequency.
Receiver, microphone, and amplifier contained in a non-custom case worn behind the
pinna. -Instrument connected by a clear plastic tube to a custom earmold worn inside
the ear. -Can be appropriate for a wide range of hearing losses.
Definition 3 of 59
If a patient has prolapsed canals, what is the next thing you should do?
Conductive hearing loss audiogram
Attenuator
Use insert ear phones
Retracted tm. a retracted eardrum refers to a condition wherein the eardrum gets pulled
or sucked into the area behind it.
symptoms are: hearing sensitivity, possibly tinnitus, ear pressure and ear pain,
sometimes dizziness and even vertigo hence the confusion with meniere's disease.
,Definition 4 of 59
In cases of an asymmetrical HL, what is the purpose for testing the WRS binaurally?
1. To identify any red flags that may require a medical referral.
2. To identify a patient's mental/medical condition.
A.Medications
B. Strokes
C. Pace Maker
D. Head injuries
E. Past surgeries
3. Obtain a history of the patient's hearing history. Hearing aid experience, issues with
every day life.
4. Identify the patient's expectations with HAs.
5. Identify the patient's needs and lifestyle.
6. Identify family concerns.
7. Identify any known allergies.
1. Present one spondee at 30-40 dB above the
PTA. If there is no response, increase the
presentation level in 20 dB steps until a
spondee is repeated correctly.
2. Decrease the presentation intensity in 10 dB
steps until there is no response (descending
technique).
3. Increase the spondee presentation intensity in
5 dB steps until there is a correct response
(ascending technique).
4. Continue the descending/ascending
technique until 50% of the responses are
correct at the lowest presentation intensity.
● Document the SRT on the audiogram in dB
HL.
● Repeat procedure on the other ear.
● In cases of asymmetry, after obtaining medical
clearance for amplification, if the binaural WRS is
worse than the better ear WRS then this indicates that the poorer ear is affecting the
better ear and amplification should not be used in the poorer ear (degradation effect).
● If the score remains the same or slightly improves then the ear with poorer speech
discrimination is not hindering the speech discrimination of the better ear.
, The member may benefit from sound awareness and should be counseled appropriately
as to the limited benefits of amplification for the ear with poorer WRS.
Type A sub d-may result in Air-Bone gaps, can be seen with ossicular discontinuity or
large, healed perforations. "ME function: Hyper-compliant findings".
Definition 5 of 59
Small eminence on the upper margin of the lobe
Tympanosclerosis. hardening of the tympanic membrane.
Deliver narrowband noise masking to the nte when there is a 15 db or greater difference
between the measured ac and bc thresholds of the te @ 500, 1000, 2000, or 4000 hz. (an
air-bone gap)
Antitragus (know the pinna anatomy)
Five reasons to perform otoscopy. (purpose and conditions)
Definition 6 of 59
Control that adjusts intensity
Operator
Attenuator
Detector
Amplifier
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