CSD 431 EXAM QUESTIONS WITH
CORRECT ANSWERS
symmetrical vs. asymmetrical - Answer-severity and shape of hearing loss are same in
each ear vs. different severity and/or shape in each ear
progressive vs. sudden hearing loss - Answer-did it worsen over time vs. did it come on
quickly
fluctuating vs. stable - Answer-changes over time (better or worse) vs. stays the same
modern hearing aids - Answer-BTE, RIC, ITE and ITC, CIC and IIC, bone-anchored,
and middle-ear implant
BTE - Answer-everything behind the ear with ear mold in ear canal
hollow tube connection
RIC - Answer-receiver in canal, other components behind the ear, thin wire connection
ITE and ITC - Answer-all components in ear canal
ITC is smaller
CIC and IIC - Answer-worn deep in the ear canal
IIC is smaller
Bone-anchored - Answer-on skull behind outer ear
sound vibrates skull and cochlea
for conductive hearing loss or single-sided deafness
middle-ear implant - Answer-helps move ossicular chain
has external magnetic microphone
for conductive, sensorineural, or mixed hearing loss
basics of how hearing aids work - Answer-picks up sound through microphone
sends to receiver in ear
amplifies and manipulates sounds based on type of hearing loss (frequency and
volume)
Hearing aid energy path - Answer-acoustic
electrical
digital
electrical
acoustic
, hearing aid selection issues - Answer-degree of hearing loss
age, lifestyle, physical limitations
cosmetic concerns and cost
adult hearing aid selection - Answer-look for cosmetic, comfort, and cost
mostly choose RICs
baby hearing aid selection - Answer-BTE, durability, and comfort
children hearing aid selection - Answer-BTE, durability, comfort, and coupling options
such as FM systems for school
verification - Answer-does it work like it's supposed to?
checking patient's ears with microphone
is fit of hearing aid correct?
trial period
basics of how to use
validation - Answer-does it benefit the patient and help with function?
parent report for child
adult self-assessment
wear time, comfort, overall satisfaction
hearing aid cost - Answer-$1000 - $6000 each
includes 1-3 year warranty
hearing aid insurance - Answer-most adults have to pay out of pocket
most children get help by state-mandate programs
basics of how cochlear implants work - Answer-microphone picks up sound
processor codes the signal
transmitter connects to receiver
receiver goes to electrode array in cochlea
cochlear implant energy path - Answer-acoustic
electrical
digital
electrical
impulse
styles of cochlea implant processors - Answer-on-the-ear
body-worn processor
off-ear processor
cochlear implant/hearing aid hybrid
on-the-ear processor - Answer-like BTE
CORRECT ANSWERS
symmetrical vs. asymmetrical - Answer-severity and shape of hearing loss are same in
each ear vs. different severity and/or shape in each ear
progressive vs. sudden hearing loss - Answer-did it worsen over time vs. did it come on
quickly
fluctuating vs. stable - Answer-changes over time (better or worse) vs. stays the same
modern hearing aids - Answer-BTE, RIC, ITE and ITC, CIC and IIC, bone-anchored,
and middle-ear implant
BTE - Answer-everything behind the ear with ear mold in ear canal
hollow tube connection
RIC - Answer-receiver in canal, other components behind the ear, thin wire connection
ITE and ITC - Answer-all components in ear canal
ITC is smaller
CIC and IIC - Answer-worn deep in the ear canal
IIC is smaller
Bone-anchored - Answer-on skull behind outer ear
sound vibrates skull and cochlea
for conductive hearing loss or single-sided deafness
middle-ear implant - Answer-helps move ossicular chain
has external magnetic microphone
for conductive, sensorineural, or mixed hearing loss
basics of how hearing aids work - Answer-picks up sound through microphone
sends to receiver in ear
amplifies and manipulates sounds based on type of hearing loss (frequency and
volume)
Hearing aid energy path - Answer-acoustic
electrical
digital
electrical
acoustic
, hearing aid selection issues - Answer-degree of hearing loss
age, lifestyle, physical limitations
cosmetic concerns and cost
adult hearing aid selection - Answer-look for cosmetic, comfort, and cost
mostly choose RICs
baby hearing aid selection - Answer-BTE, durability, and comfort
children hearing aid selection - Answer-BTE, durability, comfort, and coupling options
such as FM systems for school
verification - Answer-does it work like it's supposed to?
checking patient's ears with microphone
is fit of hearing aid correct?
trial period
basics of how to use
validation - Answer-does it benefit the patient and help with function?
parent report for child
adult self-assessment
wear time, comfort, overall satisfaction
hearing aid cost - Answer-$1000 - $6000 each
includes 1-3 year warranty
hearing aid insurance - Answer-most adults have to pay out of pocket
most children get help by state-mandate programs
basics of how cochlear implants work - Answer-microphone picks up sound
processor codes the signal
transmitter connects to receiver
receiver goes to electrode array in cochlea
cochlear implant energy path - Answer-acoustic
electrical
digital
electrical
impulse
styles of cochlea implant processors - Answer-on-the-ear
body-worn processor
off-ear processor
cochlear implant/hearing aid hybrid
on-the-ear processor - Answer-like BTE
