Diagnostic Audiology Questions and Answers 100% Correct 2023
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Course
Audiology
Institution
Audiology
Diagnostic Audiology Questions and Answers 100% Correct 2023
What is the range of frequencies that humans can hear?
20-20,000Hz
What is conductive hearing loss?
problem with outer or middle ear transmission of sound waves
examples: cerumen builds up, too much hair in the ear canal, otis ...
Diagnostic Audiology Questions and
Answers 100% Correct 2023
What is the range of frequencies that humans can hear? - answer 20-20,000Hz
What is conductive hearing loss? - answer problem with outer or middle ear
transmission of sound waves
examples: cerumen builds up, too much hair in the ear canal, otis media ear infection),
ossicular discontinuity (seperation of the ossicles), otosclerosis (abnormal growth of
bone in ME)
What are the causes of sensorineural hearing loss? - answer Damage to inner ear or
auditory nerve
examples:damage to hair cell, presbycsis, ototoxicity, tinnitus, noise induced hearing
loss, tumor growth
What is presbycusis? - answer HL due to old age (high frequencies lost)
What is central hearing loss? - answer Problem in brainstem or cortex
Causes of central hearing loss? - answer decreases in brain volume at age 70,
decrease in # of dendrites & synapses, increase in pathological structures
What is the difference between a behavioral or non-behavioral test of hearing? - answer
Behavioral tests: pure tone audiometry, air conduction, bone conduction, speech
audiometry
Non-behavioral tests: tympanometry, Otoacoustic emissions (OAE's), Auditory
brainstem response (ABR)
What is the difference between air conduction and bone conduction audiometry? -
answer Air conduction: listen to sounds through headphones or earphones, includes
all parts of the auditory pathway, tests outer ear through central pathway
Bone conduction: listen to sounds through bone conduction headphones, bypasses
outer and middle ear, test inner ear through central pathway
What is the air-bone gap and how is it used to determine type of hearing loss? - answer
it's a gap between the air conduction and bone conduction symbols on audiogram (hear
test frequencies at softer intensities with bone conduction)
-this means theres a problem in the outer or middle ear- this means conductive hearing
loss
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