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Costco New Exam With Complete Solutions 100% Verified latest update
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Costco New Exam With Complete Solutions 100%Verified latest update
separates the tympani and cochlear duct (scala media) - ANSWER basilar membrane
large perforation of the tympanic membrane can cause how many dB loss - ANSWER 30
dB
what hearing loss is often favorable for medical treatment - ANSWER conductive
___ is good to find hearing loss. ____ and SRT are within 5 to 10 dB difference - ANSWER
PTA
parallel vent in a non-occluding earmold enhances what frequencies - ANSWER high
frequencies
Name one hard, easy to modify earmold material most commonly used - ANSWER Lucite
acrylic
functional gain provides comparison between - ANSWER unaided and aided output
SIE or RIC emphasized what frequency due to the large and or open vent - ANSWER
High Frequency
Tympanogram: significant negative pressure and normal mobility - ANSWER Type C
Tympanogram: restricted tympanic membrane mobility - ANSWER Type B
,Tympanogram: Normal middle ear pressure but reduced mobility - ANSWER Type As
Tympanogram: Normal middle ear pressure but hypermobility - ANSWER Type Ad
non-organic loss shows an acoustic reflex test of how many dB - ANSWER 5 dB
what vent modifies low frequency and in non-occluding earmold enhances high
frequency - ANSWER parallel vent
Causes of an absent acoustic reflex - ANSWER facial nerve problem, bilateral
conductive loss, severe and profound sensorineural loss
What does a 5.00 cc measurement of static compliance indicate ANS perforation of the
tympanic membrane
Hearing test for children using lights or pictures ANS Behavioral observation
What Hz range is speech recognition in ANS 1,000 to 10,000 Hz
Earmold Functions: ANS seal the ear to prevent acoustic feedback, hold tube to the ear
firmly, cosmetically appealing
Best candidate for non-occluding earmold ANS unilateral loss
what frequencies does venting technique effect ANSWER below 1,000 Hz
What frequencies does acoustic modification effect ANSWER 1,000 to 3,000 Hz
, What frequency range do most hearing aids produce ANSWER 100 to 8,000 Hz
What is the major source of noise in hearing aids ANSWER receiver
What are the types of aided feedback ANSWER acoustic, mechanical, magnetic
LDFR (level dependent frequency response) automatically changes ANSWER gain and
frequency
Cross fitting uses what type of earmold - ANSWER non-occluding
what is a clear indication of a sensorineural hearing loss - ANSWER AC & BC are almost
the same
Retrocochlear loss signs - ANSWER poorer WRS, no acoustic reflex, unilateral loss
conductive loss signs - ANSWER flat configuration, ABG, absent acoustic reflex
OSHA noise exposure level - ANSWER 90 dB - 8 hrs, 95 dB - 4 hrs, 100 dB - 2 hrs, 105 dB
1 hr, 155 dB - 15 min., 120 dB - 7.5 min.
Subjective acoustic sensation, no cure, surgical or medical intervention is used for the
treatment - ANSWER tinnitus
electro mechanical transducer - ANSWER receiver
what kind of mic is a FET that has a tolerance for temperature and humidity - ANSWER
ceramic microphone
conductive loss signs - ANSWER UCL is high and absent acoustic reflex
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