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SPAA 343 > Hearing Aids and Cochlear Implants > Flashcards

Hearing Aids and Cochlear Implants Flashcards

1
Q

pros for ITC

A
  • little feedback
  • good for ears with mild to moderate SNHL
  • easier insertion and removal
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2
Q

Cons of ITC HA

A
  • no telecoil
  • Cereuman buildup
  • not as powerful
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3
Q

CIC HA

A

Completely in the Canal

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4
Q

what size battery does CIC HA use

A

size 10

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5
Q

Pros of CIC

A
  • reduced occlusion
  • increased output
  • easy insertion and removal
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6
Q

cons of CIC

A
  • more expensive
  • easy to lose
  • high maintenance
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7
Q

What is an implantable HA

A
  • bone conduction
  • fits tightly to the mastoid bone
  • bypasses outer and middle ear
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8
Q

Implantable HA’s are for people with

A
  • conductive HL
  • Mixed HL
  • single sided deafness
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9
Q

Implantable HA’s contain

A
  • abutment
  • sound processor
  • titanium implant
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10
Q

MEI HA

A

Middle Ear implant

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11
Q

What is an MEI HA

A

Wire attached around the cochlea

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12
Q

What does a middle ear implant do

A

converts sound signals into mechanical waves

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13
Q

Middle ear implants are for

A

SNHL

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14
Q

Pros of middle ear implant

A
  • prevents occlusion
  • prevents earwax buildup
  • prevents acoustic feedback
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15
Q

Cons of middle ear implant

A
  • expensive
  • requires surgery
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16
Q

What is needed for a HA candidate

A
  • medical clearance
  • motivation
  • degree of speaking
  • degree of HL
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17
Q

selection of HA style depends on

A
  • physical status
  • degree and type of HL
  • technology and features
  • cost
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18
Q

Monaural HA

A

1 hearing aid

19
Q

Binaural HA

A

2 hearing aids

20
Q

Advantages of binaural HA

A
  • sound localization
  • sound discrimination in quiet and noisy
  • loudness summation
21
Q

CROS and BICROS

A

effects of single-sided deafness

22
Q

CROS

A

contralateral routing of the the signal

23
Q

BICROS

A

Bilateral Contralateral routing of the signal

24
Q

CROS is

A
  • used for high-frequency loss
  • normal hearing in one ear and nonhearing in the other
  • only one hA is turned on
25
Q

BICROS is

A
  • both hearing aids turnd on
  • one HA with only microphone, while other HA has all of the components
  • used for no hearing
26
Q

4 critical areas of a HA fitting

A
  • selection
  • fitting
  • quality control
  • verification
27
Q

selection

A

picking a HA

28
Q

quality control

A
  • done before HA fitting
  • electroacoustic variations
29
Q

DSL

A

desired sensation level

30
Q

the formula for a HA fitting is louder for children than adults - T/F?

A

true

31
Q

Hearing orientation includes

A

the HIO-BASICS

32
Q

during a pediatric fitting

A
  • SLP, Audiologists, etc may be involved
  • parents must be involved
  • real ear analysis must be done
  • use all audiology results
33
Q

What is a cochlear implant

A

an auditory prosthesis for individuals with minimal benefits from HA’s

34
Q

a cochlear implant

A
  • bypasses the damaged hair cells
  • directly stimulates the auditory nerve
  • not an amplifier
  • converts acoustic to electric signal
35
Q

what are the 2 components of a CI

A

internal and external

36
Q

internal components of a CI

A
  • receiver stimulator
  • electrode array
  • the cochlea
37
Q

Where is the reciever stimulator

A

implanted in the mastoid bone

38
Q

where is the electrode array

A

threaded through the middle space into the cochlea

39
Q

what are the external components of a CI

A

microphone, battery, speech processor

40
Q

part of the cochlear implant evaluation

A
  • medical
    -psychological
  • audiological
    -counseling
41
Q

Medical Evaluation of a CI

A
  • overall health
  • CTs, MRI’s done
  • history of HL
42
Q

Audiologic Evaluation of a CI

A
  • pure tone air and bone conduction
  • sentence and word recognition
  • evalve of current amplification
43
Q

Psychological/rehab evaluation of CI’s

A
  • stress related to surgery
  • children’s development and education development
  • patients expectations after implantation

SPAA 343 (1 decks)

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