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Practice Audiology Exam Questions With Complete Solutions
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Practice Audiology Exam Questions With Complete Solutions
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Practice Audiology Exam Questions With CompleteSolutions
. According to PL 99-457, a child under 2 years of age who has
a hearing impairment must
(A) be fitted with binaural hearing aids
(B) have biannual hearing evaluations
(C) be enrolled in a center-based habilitation program
(D) have a written individualized family service plan
(E) be provided with total communication training Correct
Answer The correct answer is (D). PL 99-457 specifies that a
plan be developed, but does not specify the type of services to
be delivered. (A), (B), (C), and (E) are incorrect because they
specify particular types of services.
. Which of the following statements about a caloric response
yielding a left unilateral
weakness in the interpretation of videonystagmography results is
most accurate?
(A) It suggests a right peripheral vestibular disorder of the
labyrinth.
(B) It is of no real value in the interpretation.
(C) It suggests a nonspecific (nonlocalizing) vestibular disorder.
(D) It suggests a left peripheral vestibular disorder of either the
labyrinthine or the VIIIth nerve.
(E) It suggests a central vestibular disorder. Correct Answer
The correct answer is (D). A unilateral weakness indicates a
disorder of the labyrinthine or the VIIIth nerve on the same side
as the weakness. Thus, in this case the disorder is indicated on
,the left side, not the right side, so (D) is the correct answer and
(A) is incorrect. (B) is incorrect because the finding is of great
value, since it has determined that a unilateral peripheral
problem exists. (C) is incorrect because the disorder is localized
to the periphery.
(E) is incorrect because a central vestibular disorder is ruled out
by these results.
0 dB0 decibels HL is best described by which of the following?
A. The intensity at which the audiometer produces no sound at
any frequency
B. The different sound pressure levels that occur at different
frequencies
C. The minimum level at which speech is understood 50 percent
of the time
D. The intensity of 10 dB10 decibels SPL at 1000 Hz1000 hertz
Correct Answer Option (B) is correct. 0 dB0 decibels HL on an
audiometer represents the minimum audible pressure needed at
each frequency for an individual with normal hearing to detect a
pure tone. This value varies with frequency due to the anatomic
and physiologic properties of the auditory system.
2. Diagnostic audiometers generally provide one- third-octave
noise for use in masking pure tones. This bandwidth is used
because bands of that width:
Are centered at the frequency range of normal speech
Encompass the width of a critical band
Produce more masking than pink noise does
Produce more masking than half-octave bands do
,Are less than the width of a critical band Correct Answer
Answer: B
Narrow bands of masking noise should be wider than a critical
band so that they will provide effective masking at the test
frequency without requiring overall levels that are higher than
necessary.
22. The audiometry room used for an occupational hearing
conservation program is scheduled for renovation. The
renovated room will have four ducts for ventilation. Each duct
will have one fan, and all fans must be identical for effective
ventilation. In order to obtain valid thresholds, the total noise of
the fans must remain below 40 dBA. Assume that the noise from
the duct fans radiates equally throughout the room. Which of the
following represents the maximum noise level that can be
emitted by each individual fan?
(A) 39 dBA
(B) 34 dBA
(C) 28 dBA
(D) 20 dBA
(E) 10 dBA Correct Answer The correct answer is (B). Starting
at 34 dB, intensity will increase by 3 dB each time the number
of sources is halved. So going from 1 to 2 sources/fans will
increase the intensity from 34 dB to 37 dBA. Doubling the
number of sources again, from two to four sources/fans, will
increase the intensity another 3 dB to 40 dBA. (A) is incorrect
because mathematically starting at 39 dBA and increasing twice
by 3 dB will bring the total to 45 dBA, which exceeds the
allowable maximum of 40 dBA. (C) is incorrect because
mathematically starting at 28 dBA and increasing twice by 3 dB
, will bring the total to 34 dBA, which is below the allowable
maximum of 40 dBA. (D) is incorrect because mathematically
starting at 20 dBA and increasing twice by 3 dB will bring the
total to 26 dBA, which is below the allowable maximum of 40
dBA. (E) is incorrect because mathematically starting at 10 dBA
and increasing twice by 3 dB will bring the total to 16 dBA,
which is below the allowable maximum of 40 dBA.
23. Which of the following symptoms is most indicative of
superior semicircular canal dehiscence?
(A) Dizziness associated with loud sounds
(B) Unilateral high-frequency tinnitus
(C) Persistent feeling of spinning
(D) Inability to walk in a straight line
(E) Fluctuating low-frequency hearing loss Correct Answer
The correct answer is (A). The thin or absent bony covering of
the superior semicircular canal (SSC) allows pressure from the
external auditory canal to be transferred to and stimulate the
SSC, resulting in dizziness. (B) is incorrect because tinnitus is
not associated with SSCD. (C) is incorrect because a persistent
feeling of spinning is not associated with SSCD. Dizziness with
SSCD is intermittent and associated with loud sounds or
pressure changes. (D) is incorrect because difficulty walking is
not associated with SSCD. (E) is incorrect because hearing loss
is not associated with SSCD.
24. Which of the following assessments best determines the
integrity of the inferior branch of the vestibular nerve?
(A) Bithermal calorics
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