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IHS Chapters 1–10 Questions and Answers – Hearing
Instrument Specialist Professionalism, Audiology
Foundations, and Hearing Science Study Guide
Professionalism can be defined as practicing with. Select one: C. work ethic D. All the above A. a high-performance standard
B. accountability - correct answer D
The legal aspects of professional practice are defined through Select one: A. membership in a professional society B. ethical conduct C. local and national laws and regulations
D. the FDA - correct
answer C Ethical
conduct. Select one: A. is the expectation that a practitioner will conduct himself/herself in a socially acceptable manner and in a way that is consistent with members of the professional organization B. has the force of law C. is defined by local and national laws and regulations
D. is dictated by the apprentice's trainer/sponsor - correct answer A
Accurate and precise clinical documentation is important to success and the professional status of a hearing instrument specialist.
Select one: A. True
B. False - correct answer A
The acronym H-E-A-R can be used as a device to remember how to construct in a logical and consistent manner. Select one: A. a purchase agreement B. clinical notes C. an aural rehabilitation plan D. an amplification management program -
correct answer B Inter-professional
collaboration leads to. Select one: A. more referrals B. greater status C. certification
D. improved patient/client care - correct answer D
A code of ethics provides guiding principles for professional conduct and may be used to help you resolve potential conflicts of interest. Select one: A. True
B. False - correct answer A
Lifelong learning is another term for. elect one:
Select one: A. True
B. False - correct answer A
A shorter wavelength results in a. Select one: A. Lower frequency B. Higher frequency C. Same frequency
D. Quieter frequency - correct answer B
The natural tendency for a system to vibrate with greater amplitude at one frequency than at others when a driving force whose frequency is at or close to the natural frequency of the system is called. Select one: A. resonance B. oscillation C. wavelength
D. phase - correct answer A
The reference for dB HL is. Select one: A. 0.0002 dynes/cm B. audiometric zero C. another audiometric value
D. 0 dB SPL - correct answer B
The reference for dB SPL is.
Select one: A. 0.0002 dynes/cm B. audiometric zero C. another audiometric value
D. 0 dB SPL - correct answer A
The reference for dB SL is. Select one: A. 0.0002 dynes/cm B. audiometric zero C. threshold
D. 0 dB SPL - correct
answer C Boyle's Law
states . Select one: A. what goes up must come down B. as the physical volume of a gas decreases, the pressure of the gas increases C. that as an earmold fits deeper into the ear canal, the SPL generated by the hearing instrument in that ear canal will decrease
D. wavelength and frequency are inversely related - correct answer B
The perceptual match for intensity is and the perceptual match for frequency is . Select one: A. dB; Hz B. pitch; loudness
D. timbre; psychoacoustics - correct answer C
The auditory system follows a power law which is a logarithmic scale. In a logarithmic scale, a 10 dB increase in intensity the loudness over most of the audible range. Select one: A. triples B. doubles C. increases by 10 times
D. decreases by 10 times - correct answer B
The normal human ear can respond to a range of frequencies from about Select one: A. 20 to 20,000 Hz B. 20 to 20,000 dB SPL C. 0 to 140 Hz
D. 0.0002 to 140 Hz - correct answer A
The concept of critical bands and frequency resolution contribute to our ability to Select one: A. hear effectively in background noise B. discriminate between two sounds that are very close in frequency C. hear very soft sounds
D. A and B - correct answer D
Low and extremely high frequencies require more intensity to be just barely audible as compared to the middle range of frequencies. Select one: A. True
B. False - correct answer A
The hearing instrument specialist is legally and ethically obligated to practice infection control standards that are consistent with federal/national and local jurisdictional safety laws and/or guidelines. Select one: A. True
B. False - correct answer A
In the context of infection control "standard precautions" refers to: Select one: A. the prevention of the spread of disease from the practitioner to the patient B. the prevention of the spread of disease from the patient to the practitioner C. hand hygiene and sharps containers D. a set of infection control practices designed to prevent the transmission of
disease - correct answer D
"Work practice controls" are: Select one: A. the hours that the practice is open for business B. the laws imposed on professional practice C. a written policy that outlines specific procedures that must be performed to minimize the spread of disease D. not applicable to the hearing instrument dispensing practice -
correct answer C At a minimum gloves must be worn when:
Select one: A. accepting a hearing instrument from a patient/client
D. is not necessary in a hearing instrument fitting and dispensing practice -
correct answer C Examples of semi-critical instruments are:
Select one: A. otoscope specula; reusable earmolds or eartips; cerumen removal instruments B. disposable ear tips for insert earphones C. personal protective equipment
D. touch surfaces - correct answer A
It is necessary to perform hand hygiene procedures immediately after glove removal. Select one: A. True
B. False - correct
answer A Hand
hygiene refers to: Select one: A. washing hands before eating B. washing hands with soap C. the use of alcohol-based hand sanitizers
D. B and C - correct answer D
The fleshy part of the ear that protrudes from the side of the head is called the Select one: A. oracle B. auricle or pinna C. flap or pinna
D. external auditory canal - correct answer B
The average adult's ear canal is about inch in length and about inch in diameter. Select one: A. 2.54 and 0. B. 1/2 and 3/ C. 1/4 and 3/
D. 1 and 1/4 - correct answer D
An important ear canal landmark for ear impressions is the: Select one: A.tympanic membrane B.annulus C. second bend
D.vagus nerve - correct
answer C The cone of
light is: Select one: A.a reflection of the light from an otoscope on the tympanic membrane B.pars connica C. seen only in ears with infections
D.is known as Arnold's reflex - correct
answer A The external auditory canal's
resonant frequency is: Select one: A.triggered by the vagus nerve B.about 2700 Hz and varies slightly from person to person C. is located at the isthmus
Abnormalities of the brain can cause hearing loss. Select one: A.sensory/neural B.conductive C. mixed
D.central - correct answer D
Abnormalities of both the inner and outer/middle ear can cause hearing loss. Select one: A.sensory/neural B.conductive C. mixed
D.central - correct answer C
Abnormalities of the inner ear can cause hearing loss. Select one: A.sensory/neural B.conductive C. mixed
D.central - correct answer A
It is important to know whether the ear canal is clear before testing hearing because: Select one: A.impacted cerumen can cause hearing loss B.excessive cerumen can prevent full view of the tympanic membrane C. cerumen can always be safely removed before testing
D.A and B - correct answer D
Ear drainage of any kind requires medical referral. Select one: A.True
B.False - correct answer A
The ossicles are the smallest bones in the body. Select one: A.True
B.False - correct answer A
The Latin names of the ossicles are: Select one: A.hammer, anvil, stirrup B.manubrium, inculus, stapedial C. annulus, transducer, medial bone
D.malleus, incus, stapes - correct answer D
There is a transduction of energy as acoustical sound courses through the middle ear which is as follows: Select one: A.acoustical energy is changed into mechanical energy at the tympanic membrane and changed into hydraulic energy at the stapes footplate B.the light reflex into mechanical energy at the tympanic membrane C. acoustical energy is changed into mechanical energy at the tympanic membrane and changed into hydraulic energy at the round window
C. functions only in airplanes D.contains the middle ear muscles -
correct answer A Otitis media is:
Select one: A.an ear infection that may result from Eustachian tube dysfunction B.an inner ear disorder that results in tinnitus C. can be treated by a traumatic perforation D.treated surgically with a Eustachian tube -
correct answer A Fluid in the middle ear is also
called: Select one: A.fusion B.effusion C. an allergy
D.bubbles - correct answer B
Otosclerosis immobilizes the ossicles at the: Select one: A.incudostapedial joint B.tympanic membrane C. cholesteatoma
D.stapes footplate - correct answer D
Ossicular discontinuity may be caused by. Select one: A.head trauma
B.otitis media C. otosclerosis
D.fixation - correct answer A
A cholesteatoma is a tumor that typically produces: Select one: A.fenestration B.sensorineural hearing loss C. stapedectomy
D.an odorous discharge - correct answer D
The process of hearing actually takes place in the brain. Select one: A.True
B.False - correct answer A
The structures of the inner ear are responsible for both hearing and balance. Select one: A.True
B.False - correct answer A
The cochlea is located with the portion of the bone. It coils in about turns. Uncoiled it measures about inch. Select one: A.osseous; frontal; 2; 1. B.petrous; temporal; 2½; 1 C. inner; temporal; 3; 2
B.bony cochlea; the coil; the membranous labyrinth C. the outer ear; middle ear; inner ear
D.the organ of Corti; retrocochlear; binaural - correct answer A
The membrane and membrane separate the cochlea into three chambers. Select one: A.perilymph; endolymph B.tectorial; Reissner's C. basilar; Reissner's
D.cochlear; vestibular - correct
answer C The organ of Corti is:
Select one: A.the sensory receptor for hearing B.the sensory receptor for balance C. a gelatinous structure
D.has only supporting cells - correct answer A
The hair cells activate the auditory nerve through energy. Select one: A.mechanical B.hydraulic C. electrochemical
D.impulse - correct answer C
The Place Theory of Hearing is simply explained as.
Select one: A.sound is processed by the brain B.binaural summation C. binaural fusion D.the basal turn of the cochlea responds to high frequencies and the apical
turn of the cochlea responds to low frequencies - correct answer D
The fluid that circulates throughout the scala vestibuli and the scala tympani is and the fluid that circulates throughout the scala media is. Select one: A.blood; lymph B.lymph; mucus C. perilymph; endolymph
D.endolymph; perilymph - correct answer C
The oval window and the round window work together as an energy relief mechanism to accommodate the traveling wave throughout the cochlea during acoustic stimulation. Select one: A.True
B.False - correct answer A
The head shadow effect represents a reduction in intensity for speech of 6 dB and for the high frequencies of about 15 dB. Select one: A.True
B.False - correct answer A
The singular perception of two different signals presented to each ear simultaneously is:
