Hearing Aid Dispensing Exam Test Prep
UPDATED ACTUAL Questions and
CORRECT Answers
What's the AC threshold test frequency order? - CORRECT 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? - CORRECT 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? - CORRECT 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? - CORRECT 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 - CORRECT ANSWER- Crossover
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 - CORRECT ANSWER- Plateau method
What's the psychological effect of frequency? - CORRECT ANSWER- Pitch! (Hz)
Physical measurement of cycles per second
- compression and rarefraction
What's the psychological effect of Intensity? - CORRECT ANSWER- Loudness (dB)
physical measurement of amplitude
Is the X axis horizontal or vertical? - CORRECT ANSWER- horizontal - Hz (frequency
range)
Is the y-axis horizontal or vertical? - CORRECT ANSWER- vertical - dB (intensity range)
What frequencies need to be tested for UCL pure tone establishment? - CORRECT ANSWER-
1000, 2000, 3000, 4000 & 500
What's the inital pure tone given during AC testing? - CORRECT ANSWER- 1000 Hz, 40
dB
,What's the initial pure tone given during UCL testing? - CORRECT 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: - CORRECT ANSWER- Red Flag
Latin name for:
Inward
&
Outward - CORRECT ANSWER- inward- medial
outward - lateral
What is:
Anterior
Posterior
Lateral? - CORRECT ANSWER- A - toward the front
P - toward the back
L - toward the side
When does acoustic feedback occur? - CORRECT 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? - CORRECT 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? - CORRECT ANSWER- 1. OVERALL
gain reduction
2. decrease vent size
At times a binaural HL pt can only afford a 1 hearing aid. How can you improve performance? -
CORRECT 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? - CORRECT ANSWER- 1.
listening comfort and preference
** gain can be increased over time
WRS's can be explained as.... - CORRECT 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... -
CORRECT 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
Vowel sounds provide speech __________ have acoustic energy concentrated in the __________
frequencies whereas the consonants provide speech __________ with their energy mainly in the
__________ frequencies. - CORRECT ANSWER- loudness;low
UPDATED ACTUAL Questions and
CORRECT Answers
What's the AC threshold test frequency order? - CORRECT 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? - CORRECT 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? - CORRECT 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? - CORRECT 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 - CORRECT ANSWER- Crossover
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 - CORRECT ANSWER- Plateau method
What's the psychological effect of frequency? - CORRECT ANSWER- Pitch! (Hz)
Physical measurement of cycles per second
- compression and rarefraction
What's the psychological effect of Intensity? - CORRECT ANSWER- Loudness (dB)
physical measurement of amplitude
Is the X axis horizontal or vertical? - CORRECT ANSWER- horizontal - Hz (frequency
range)
Is the y-axis horizontal or vertical? - CORRECT ANSWER- vertical - dB (intensity range)
What frequencies need to be tested for UCL pure tone establishment? - CORRECT ANSWER-
1000, 2000, 3000, 4000 & 500
What's the inital pure tone given during AC testing? - CORRECT ANSWER- 1000 Hz, 40
dB
,What's the initial pure tone given during UCL testing? - CORRECT 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: - CORRECT ANSWER- Red Flag
Latin name for:
Inward
&
Outward - CORRECT ANSWER- inward- medial
outward - lateral
What is:
Anterior
Posterior
Lateral? - CORRECT ANSWER- A - toward the front
P - toward the back
L - toward the side
When does acoustic feedback occur? - CORRECT 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? - CORRECT 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? - CORRECT ANSWER- 1. OVERALL
gain reduction
2. decrease vent size
At times a binaural HL pt can only afford a 1 hearing aid. How can you improve performance? -
CORRECT 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? - CORRECT ANSWER- 1.
listening comfort and preference
** gain can be increased over time
WRS's can be explained as.... - CORRECT 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... -
CORRECT 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
Vowel sounds provide speech __________ have acoustic energy concentrated in the __________
frequencies whereas the consonants provide speech __________ with their energy mainly in the
__________ frequencies. - CORRECT ANSWER- loudness;low
