Exam (elaborations)
IHS Exam Questions and Answers 2024
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Exam of 17 pages for the course IHS at IHS (IHS Exam)
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IHS ExamIn general, mold modifications are as follows: - answerVenting affects lows, damping
the midrange and horn effects boost highs.
Basic verification involves: - answerchecking MCL and UCL in quiet and noise.
Sound field is - answera controlled environment
The configuration and height of the tympanogram can be a factor in deciding the proper
matrix for the fitting of a hearing aid: - answerA high Type A tells us to decrease the
output by 2-3 dB
You cannot use feedback checks when - answerchecking the telephone coil
Verification procedures: - answerCheck the accuracy of your fitting.
The problems produced by excessive ambient noise are - answergreater for the lower
frequencies than the higher frequencies
The decibel is - answera ratio between two intensities
REUR measurement are taken in - answeran open human ear canal
When a hearing aid is dead, you can check the receiver and microphone function by: -
answerturning on the instrument telecoil
The dividing line between the external and middle ear is the - answertympanic
membrane
The cochlea, acting as a frequency analyzer, distributes acoustic stimuli to places along
the basilar membrane according to frequency. This forms the basis of a hypothesis
called the: - answerPlace Theory
An organic disorder is when there is damage to: - answerThe hearing mechanism, the
neural pathways and the brain.
The speed of sound in air, in feet per second, is : - answer1100
Properly selected hearing instruments should allow: - answerThe patient to wear an
instrument at a comfortable loudness level, improved communication and have better
hearing aided.
,Crystal microphones and receivers: - answerare very fragile
Which of the following is not a coupler used for measuring hearing aid performance? -
answerZwisks Ear Simulator
Small diameter tubing of SIA hearing aids has the effect of : - answerreducing the high
frequency gain
The function of a microphone is to : - answerconvert acoustic energy into electrical
energy
Vent an earmold : - answeris the most common modification made on an earmold
When a new hearing instrument has feedback at the patients comfortable level, the
problem is usually: - answertoo much wax in the ear canal
With SIE-S hearing aids: - answerThe only signal is from the hearing aid and phrase
effects from a vent are not an issue.
The most comfortable level is: - answerAbout 45 dB HL or 65 dB SPL for normal ears
Any complex sound can be broken down into individual frequencies by a technique
known as: - answerFourier Spectral analysis
The adult ear canal: - answerrises upward and forward, then descends to the drum.
An effective verification is: - answera measure able improvement in communication
Which of the following is not included in correct test protocols? - answerplugging the
hearing aid vent to control feedback
Most conducive losses: - answerAre medically correctable, display a breakdown or
obstruction in middle ear and display good discrimination
The T position on a hearing aid switch can be used to - answeramplify a telephone
conversation, couple hearing aid into a loop inductor, couple directly into the audio of a
radio or tv
The following components can change or modify the frequency response of a hearing
instrument: - answera microphone
Afferent fibers: - answertransmit from the cochlea to the brain.
User satisfaction must include: - answerpatient preferences
, The following measurements use SPL as a reference: - answerProbe microphones,
sound field aided thresholds, and ANSI specifications
Speech discrimination tests: - answerapproximate a sample of speech sounds in an
ordinary conversation.
A formant is: - answera frequency region within a complex tone where certain
harmonics have relatively large energy.
Malingering is a category of : - answernon organic loss
Bone conduction threshold worse than air conduction thresholds may be caused by : -
answerpoor placement of vibrator, skull fracture, thickness of skull
Part of the basic law of electrical energy is : - answerprotons attract electrons
Some patients with binaural amplification can experience: - answerdegredation effect
The scala tympani is filled with: - answerperilymph
The following is a transducer: - answerelectret microphone
A sensorineural hearing loss is due to a disorder in the: - answerInner ear
In pure tone testing, threshold means : - answerthe lowest intensity the client hears 50%
of the time.
The ear, due to its physical characteristics, enhances which frequencies? - answer2,000
- 5,000hz
When performing aided sound field testing, what degree of angle (from the
patient/client) is the speaker to be placed? - answer45
Rather than asking a patient/client, "How does that sound?," which test can a hearing
healthcare professional use to measure the change in a patient's/client's hearing? -
answerAPHAB
A hearing healthcare professional completes a fitting of new open-fit technology for a
patient/client.
Which outcome measurement tool should the hearing healthcare professional use to
determine proper fit? - answerReal ear measurement
Which validation method can be effectively performed in a sound field environment? -
answerNU 6
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