Hearing Aid Dispensing Exam Test Prep
Questions with Correct Answers
What's the AC threshold test frequency order? - ANSWER - 1000, 1500, 2000, 3000, 4000,
6000, 8000
re-test 1000, 750, 500, 250
* we re-test at 1000 because it establishes consistency
What's the BC threshold test frequency order? - ANSWER - * present the initial tone 20 dB
above AC threshold
* re-established threshold
* ascend/descend method
1000, 2000, 3000, 4000
re-test 1000, 500, 250 (dependent)
What's the heliocatrema? - ANSWER - A semilunar opening at the apex of the cochlea through
which the scala vestibuli and scala tympani communicate with one another
How do we know Interaural (between ears) attenuation (reduction) is occuring based on
audiogram results? - ANSWER - IA attentuation varies per transducer and frequency
1. Supraural - 40- 50 dB gap between left and right thresholds at same frequency
2. Insert- 50-70 dB gap between left and right threshold at same frequency
3. BC oscillator - 0 dB gap because EVERYTHING CROSSES OVER!
,when the sound is presented at a high enough intensity that the cochlea of the NTE hears the
sound via BONE CONDUCTION - ANSWER - Crossover
At times a binaural HL pt can only afford a 1 hearing aid. How can you improve performance? -
ANSWER - 1. directional microphones
2. reduce low frequency gain (less head in a barrel/hollow sound)
What's the main focus when initially fitting a geriatric p/c? - ANSWER - 1. listening comfort and
preference
** gain can be increased over time
WRS's can be explained as.... - ANSWER - Best Case
because they're meausred in a quiet environment
In establishing realistic expectations for potential hearing aid wearers, it MAY be helpful to
convey an estimate of potential communication SUCCESS with amplification such as... -
ANSWER - WORD RECOGNITION SCORES
90% correct and up - excellent results
80-90% - good results
70-80% - fair to good
50-70% - fair to less than
50% - success is possible but needs assistance
A method of masking the nontest ear in which masking is introduced progressively over a range
of intensity levels until a plateau is reached, indicating the level of masked threshold of the test
ear - ANSWER - Plateau method
What's the psychological effect of frequency? - ANSWER - Pitch! (Hz)
,Physical measurement of cycles per second
- compression and rarefraction
What's the psychological effect of Intensity? - ANSWER - Loudness (dB)
physical measurement of amplitude
Is the X axis horizontal or vertical? - ANSWER - horizontal - Hz (frequency range)
Is the y-axis horizontal or vertical? - ANSWER - vertical - dB (intensity range)
What frequencies need to be tested for UCL pure tone establishment? - ANSWER - 1000, 2000,
3000, 4000 & 500
What's the inital pure tone given during AC testing? - ANSWER - 1000 Hz, 40 dB
What's the initial pure tone given during UCL testing? - ANSWER - 1000 Hz, 70 dB
The audiometric evaluation revealed several air-bone gaps: 20 dB at 500 Hz; 15 dB at 1000 Hz;
and 20 dB at 2000 Hz. This finding is called: - ANSWER - Red Flag
Latin name for:
Inward
&
Outward - ANSWER - inward- medial
outward - lateral
What is:
Anterior
, Posterior
Lateral? - ANSWER - A - toward the front
P - toward the back
L - toward the side
When does acoustic feedback occur? - ANSWER - Whenever the receiver leaks sound that's
p/u by the mic and continously re-amplified by the HA
What are the 3 feedback sources? - ANSWER - 1. Internal (loose receiver/crack in shell)
2. External (excessive ceruman/imperfect seating in canal)
3. ear canal (imperfect seal)
How can you fix too much high frequency response? - ANSWER - 1. OVERALL gain reduction
2. decrease vent size
Vowel sounds provide speech __________ have acoustic energy concentrated in the
__________ frequencies whereas the consonants provide speech __________ with their
energy mainly in the __________ frequencies. - ANSWER - loudness;low
understanding; high
The functional implications of a patient's/client's hearing loss can be conveyed using a
description of the __________ and their __________ - ANSWER - H.L severity
word recognition
The singular perception of two different signals presented to each ear simultaneously is: -
ANSWER - binaural fusion
equal hearing in both ears - ANSWER - binaural squelch
What are the 3 membranes in the inner ear? What are the three fluid filled cavities in the inner
ear? - ANSWER - 1.) basilar
Questions with Correct Answers
What's the AC threshold test frequency order? - ANSWER - 1000, 1500, 2000, 3000, 4000,
6000, 8000
re-test 1000, 750, 500, 250
* we re-test at 1000 because it establishes consistency
What's the BC threshold test frequency order? - ANSWER - * present the initial tone 20 dB
above AC threshold
* re-established threshold
* ascend/descend method
1000, 2000, 3000, 4000
re-test 1000, 500, 250 (dependent)
What's the heliocatrema? - ANSWER - A semilunar opening at the apex of the cochlea through
which the scala vestibuli and scala tympani communicate with one another
How do we know Interaural (between ears) attenuation (reduction) is occuring based on
audiogram results? - ANSWER - IA attentuation varies per transducer and frequency
1. Supraural - 40- 50 dB gap between left and right thresholds at same frequency
2. Insert- 50-70 dB gap between left and right threshold at same frequency
3. BC oscillator - 0 dB gap because EVERYTHING CROSSES OVER!
,when the sound is presented at a high enough intensity that the cochlea of the NTE hears the
sound via BONE CONDUCTION - ANSWER - Crossover
At times a binaural HL pt can only afford a 1 hearing aid. How can you improve performance? -
ANSWER - 1. directional microphones
2. reduce low frequency gain (less head in a barrel/hollow sound)
What's the main focus when initially fitting a geriatric p/c? - ANSWER - 1. listening comfort and
preference
** gain can be increased over time
WRS's can be explained as.... - ANSWER - Best Case
because they're meausred in a quiet environment
In establishing realistic expectations for potential hearing aid wearers, it MAY be helpful to
convey an estimate of potential communication SUCCESS with amplification such as... -
ANSWER - WORD RECOGNITION SCORES
90% correct and up - excellent results
80-90% - good results
70-80% - fair to good
50-70% - fair to less than
50% - success is possible but needs assistance
A method of masking the nontest ear in which masking is introduced progressively over a range
of intensity levels until a plateau is reached, indicating the level of masked threshold of the test
ear - ANSWER - Plateau method
What's the psychological effect of frequency? - ANSWER - Pitch! (Hz)
,Physical measurement of cycles per second
- compression and rarefraction
What's the psychological effect of Intensity? - ANSWER - Loudness (dB)
physical measurement of amplitude
Is the X axis horizontal or vertical? - ANSWER - horizontal - Hz (frequency range)
Is the y-axis horizontal or vertical? - ANSWER - vertical - dB (intensity range)
What frequencies need to be tested for UCL pure tone establishment? - ANSWER - 1000, 2000,
3000, 4000 & 500
What's the inital pure tone given during AC testing? - ANSWER - 1000 Hz, 40 dB
What's the initial pure tone given during UCL testing? - ANSWER - 1000 Hz, 70 dB
The audiometric evaluation revealed several air-bone gaps: 20 dB at 500 Hz; 15 dB at 1000 Hz;
and 20 dB at 2000 Hz. This finding is called: - ANSWER - Red Flag
Latin name for:
Inward
&
Outward - ANSWER - inward- medial
outward - lateral
What is:
Anterior
, Posterior
Lateral? - ANSWER - A - toward the front
P - toward the back
L - toward the side
When does acoustic feedback occur? - ANSWER - Whenever the receiver leaks sound that's
p/u by the mic and continously re-amplified by the HA
What are the 3 feedback sources? - ANSWER - 1. Internal (loose receiver/crack in shell)
2. External (excessive ceruman/imperfect seating in canal)
3. ear canal (imperfect seal)
How can you fix too much high frequency response? - ANSWER - 1. OVERALL gain reduction
2. decrease vent size
Vowel sounds provide speech __________ have acoustic energy concentrated in the
__________ frequencies whereas the consonants provide speech __________ with their
energy mainly in the __________ frequencies. - ANSWER - loudness;low
understanding; high
The functional implications of a patient's/client's hearing loss can be conveyed using a
description of the __________ and their __________ - ANSWER - H.L severity
word recognition
The singular perception of two different signals presented to each ear simultaneously is: -
ANSWER - binaural fusion
equal hearing in both ears - ANSWER - binaural squelch
What are the 3 membranes in the inner ear? What are the three fluid filled cavities in the inner
ear? - ANSWER - 1.) basilar
