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
2
Q
Cons of ITC HA
A
- no telecoil
- Cereuman buildup
- not as powerful
3
Q
CIC HA
A
Completely in the Canal
4
Q
what size battery does CIC HA use
A
size 10
5
Q
Pros of CIC
A
- reduced occlusion
- increased output
- easy insertion and removal
6
Q
cons of CIC
A
- more expensive
- easy to lose
- high maintenance
7
Q
What is an implantable HA
A
- bone conduction
- fits tightly to the mastoid bone
- bypasses outer and middle ear
8
Q
Implantable HA’s are for people with
A
- conductive HL
- Mixed HL
- single sided deafness
9
Q
Implantable HA’s contain
A
- abutment
- sound processor
- titanium implant
10
Q
MEI HA
A
Middle Ear implant
11
Q
What is an MEI HA
A
Wire attached around the cochlea
12
Q
What does a middle ear implant do
A
converts sound signals into mechanical waves
13
Q
Middle ear implants are for
A
SNHL
14
Q
Pros of middle ear implant
A
- prevents occlusion
- prevents earwax buildup
- prevents acoustic feedback
15
Q
Cons of middle ear implant
A
- expensive
- requires surgery
16
Q
What is needed for a HA candidate
A
- medical clearance
- motivation
- degree of speaking
- degree of HL
17
Q
selection of HA style depends on
A
- physical status
- degree and type of HL
- technology and features
- cost
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
BICROS is
- both hearing aids turnd on
- one HA with only microphone, while other HA has all of the components
- used for no hearing
26
4 critical areas of a HA fitting
- selection
- fitting
- quality control
- verification
27
selection
picking a HA
28
quality control
- done before HA fitting
- electroacoustic variations
29
DSL
desired sensation level
30
the formula for a HA fitting is louder for children than adults - T/F?
true
31
Hearing orientation includes
the HIO-BASICS
32
during a pediatric fitting
- SLP, Audiologists, etc may be involved
- parents must be involved
- real ear analysis must be done
- use all audiology results
33
What is a cochlear implant
an auditory prosthesis for individuals with minimal benefits from HA's
34
a cochlear implant
- bypasses the damaged hair cells
- directly stimulates the auditory nerve
- not an amplifier
- converts acoustic to electric signal
35
what are the 2 components of a CI
internal and external
36
internal components of a CI
- receiver stimulator
- electrode array
- the cochlea
37
Where is the reciever stimulator
implanted in the mastoid bone
38
where is the electrode array
threaded through the middle space into the cochlea
39
what are the external components of a CI
microphone, battery, speech processor
40
part of the cochlear implant evaluation
- medical
-psychological
- audiological
-counseling
41
Medical Evaluation of a CI
- overall health
- CTs, MRI's done
- history of HL
42
Audiologic Evaluation of a CI
- pure tone air and bone conduction
- sentence and word recognition
- evalve of current amplification
43
Psychological/rehab evaluation of CI's
- stress related to surgery
- children's development and education development
- patients expectations after implantation
