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Practice Test
Hearing Aids 1
30
Audiology
Graduate
02/21/2017

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Cards

Term
Hearing aids are the treatment choice for ___% of people with hearing loss
Definition
80
Term
When doing real-ear, the probe tip should be about __ to __ mm from the eardrum?
Definition
5-7
Term
FDA red flags include ___ of the ear that was present at birth or caused by some type of trauma, active ___ from the ear during the previous 90 days, sudden or recent ___ hearing loss during the previous 90 days, and air-bone gaps equal to or greater than ___ dB HL at 500, 1000, and 2000 Hz
Definition
deformity; drainage; unilateral; 15
Term
With informational counseling, Margolis believe that most patients forget about ___% of what they were told by their healthcare provider.
Definition
50
Term
What is the correction factor for POGO at 250 Hz?
Definition
10 dB
Term
Flattened tuning curves may result in ___, poor ___ perception, upward spread of ___, and difficulty understanding ___ in noise
Definition
recruitment, pitch; masking; speech
Term
The period of a wave is how long it takes to ___ a cycle and 1/___.
Definition
repeat; frequency
Term
Localization cues for low frequency sounds are based on ___ arrival cues whereas high frequency sounds are based on ___ ___ differences
Definition
time; interaural intensity
Term
Which style of hearing aid gives the elderly the most burden?
Definition
BTE with earmold because of dexterity issue. It comes apart into 2 pieces
Term
What style of hearing aid is the best choice for children 12 years and under?
Definition
BTE with earmold
Term
What hearing aid can take the best advantage of the concha effect and the very small volume between the receiver and the eardrum fro the high frequency gain?
Definition
CIC (Completely in the canal) because it leaves the whole concha free
Term
To cut out more low frequencies from a frequency response, you would use a ___ vent
Definition
bigger
Term
Fourier transfer is changing the time wave of a sound to a ___
Definition
spectrum
Term
Cut-off frequencies for filters are usually found __ dB down from the peak.
Definition
3
Term
the greater the ___ ___ ___, the greater the potential benefit from a bone a bone-anchored hearing aid
Definition
air-bone gap
Term
True or false: A BTE has a more natural microphone placement than an ITE hearing aid
Definition
Fasle
Term
A CROS hearing aid is for patients with a ___ or ___-___ ear on one side and a ___-___ ear on the other side
Definition
normal; near-normal; non-functional
Term
Congential aural atresia aural atresia occurs in about 1 in every ___ to ___ births
Definition
10,000; 20,000
Term
Patients have to be at least __ years old to have a BAHA
Definition
5
Term
The head shadow effect can be a problem for persons with ___ hearing loss
Definition
unllateral
Term
A receiver changes electric into ___ energy
Definition
acoustic
Term
Speech is considered to have ___ waveforms
Definition
quasiperiodic
Term
Compression circuits in hearing aids help combat the problem of ___
Definition
recruitment
Term
Conversational speech is __ dB SPL and __ dB HL 1 meter from the speaker
Definition
65; 45
Term
The audiogram uses dB ___ and hearing aids use dB ___
Definition
HL; SPL
Term
Output –Gain = ___
Definition
Input
Term
Peri-lingual hearing loss occurs between ages __ and __
Definition
3; 5
Term
In the block diagram of a digital hearing aid, the analog to digital converter can be found in between the ___ and the ___ ___
Definition
microphone; digitial circuit
Term
A ___ is an input transducer
Definition
telecoil
Term
For linear hearing aids, there is a direct and predictable relationship between input and output based on ___
Definition
gain
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