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CAOHC EXAM STUDY QUESTIONS WITH 100% CORRECT ANSWER
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CAOHC EXAM STUDY QUESTIONS WITH 100% CORRECT ANSWER CAOHC EXAM STUDY QUESTIONS WITH 100% CORRECT ANSWER
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CAOHC EXAM STUDY 2024-2025 QUESTIONSWITH 100% CORRECT ANSWER
Unit of measurement for frequency (pitch) - CORRECT ANSWER Hertz (Hz)
Unit of measurement for intensity (loudness) - CORRECT ANSWER Decibel
(dB)
Risk of damage from noise - CORRECT ANSWER How loud (intensity) and
how long (duration)
Steady-state or continuous noise, e.g. generator - CORRECT ANSWER Lasts
1 second or longer
Impulse or Impact noise, e.g. gunfire or nail gun - CORRECT ANSWER Lasts
less than one second
Parts of the outer ear - CORRECT ANSWER Pinna and external auditory
canal
Parts of the middle ear - CORRECT ANSWER Tympanic membrane, ossicles,
eustachian tube
Eustachian tube (auditory tube) - CORRECT ANSWER Tube connecting the
middle ear to the pharynx and equalizes middle ear space with atmospheric
pressure
, CAOHC EXAM STUDY 2024-2025 QUESTIONS
WITH 100% CORRECT ANSWER
Conductive HL occurs here - CORRECT ANSWER Outer or middle ear
Sensorineural hearing loss - CORRECT ANSWER Hearing loss resulting from
damage to the inner ear (cochlea) or the auditory nerve
Noise-induced hearing loss (NIHL) - CORRECT ANSWER Condition caused by
the destruction of hair cells, the organs responsible for hearing, as a result of
sounds that are "too long, too loud, or too close"; a sensorineural hearing loss
Mixed hearing loss - CORRECT ANSWER Combination of conductive and
sensorineural types in the same ear
Middle ear bones (ossicles) - CORRECT ANSWER Malleus (hammer), incus
(anvil), stapes (stirrup)
Possible early symptoms/signs of noise induced hearing loss - CORRECT
ANSWER Tinnitus; difficulty understanding in presence of background noise;
read visual cues
Auditory effects of noise - CORRECT ANSWER NIHL; tinnitus; hyperacusis
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