Caohc Test Bank Questions With Verified Answers Full Review

CAOHC TEST BANK QUESTIONS WITH
VERIFIED ANSWERS FULL REVIEW

●● Unit of measurement for intensity (loudness)
Answer: Decibel (dB)


●● Risk of damage from noise
Answer: How loud (intensity) and how long (duration)


●● Steady-state or continuous noise, e.g. generator
Answer: Lasts 1 second or longer


●● Impulse or Impact noise, e.g. gunfire or nail gun
Answer: Lasts less than one second


●● Parts of the outer ear
Answer: Pinna and external auditory canal


●● Parts of the middle ear
Answer: Tympanic membrane, ossicles, eustachian tube


●● Eustachian tube (auditory tube)

, Answer: Tube connecting the middle ear to the pharynx and equalizes
middle ear space with atmospheric pressure


●● Conductive HL occurs here
Answer: Outer or middle ear


●● Sensorineural hearing loss
Answer: Hearing loss resulting from damage to the inner ear (cochlea)
or the auditory nerve


●● Noise-induced hearing loss (NIHL)
Answer: Condition caused by the destruction of hair cells in the inner
ear, 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
Answer: Combination of conductive and sensorineural types in the same
ear


●● Middle ear bones (ossicles)
Answer: Malleus (hammer), incus (anvil), stapes (stirrup)


●● Possible early symptoms/signs of noise induced hearing loss