Final Exam Flashcards

1
Q

Where high frequencies resonate on the basilar membrane

A

Base

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2
Q

Where low frequencies resonate on the basilar membrane

A

Apex

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3
Q

Number of Outer Hair Cells

A

12,000 (3 rows)

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4
Q

Number of Inner Hair Cells

A

3,500 (1 row)

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5
Q

Structure of cochlear amplifier

A

Outer Hair Cells

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6
Q

2 Benefits of the Cochlear Amplifier

A
  1. Improved sensitivity to soft sounds
  2. Improved frequency discrimination
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7
Q

Loss of Cochlear Amplifier Effects on Threshold

A

Thresholds will be outside normal range

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8
Q

Loss of Cochlear Amplifier Effect of Word Recognition

A

-Reduced word recognition abilities, especially in background noise

-Due to reduced frequency discrimination

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9
Q

Percentage of childhood hearing loss due to genetics

A

50-60%

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10
Q

Percentage of hearing loss that is non-syndromic

A

70%

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11
Q

Autosomal Dominant

A

Mutated gene inherited from one parent

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12
Q

Autosomal Recessive

A

Mutated gene inherited from both parents

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13
Q

X-linked

A

Mutated gene from mother passes to son

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14
Q

Non-organic hearing loss definition

A

False or exaggerated hearing loss

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15
Q

Appropriate synonym for non-organic hearing loss

A

Pseudohypacusis

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16
Q

Inappropriate terms for non-organic hearing loss

A

-Malingering
-Feigning
-Faking
-Psychogenic hearing loss
-Hysterical deafness

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17
Q

A-weighting

A

Sensitivity across frequencies resembles that of the human ear

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18
Q

NIOSH Exchange Rate

A

3 dB rate starting at 85 dB (A) at 8 hours, cut time in half every 3 dB

(120 dB=7sec)

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19
Q

OSHA Exchange Rate

A

5 dB rate starting at 90 dB (A) at 90 dB (A), cut time in half

(120 dB=7.5 minutes)

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20
Q

Noise Reduction Rating (NRR)

A

Number used to represent effectiveness of hearing protection devices

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21
Q

SOAP: S

A

Subjective: Reason or visit; subjective observations; case history

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22
Q

SOAP: O

A

Objective: Tests/procedures completed; findings and test conditions

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23
Q

SOAP: A

A

Assessment: Summary of S & O to provide a diagnostic statement and implications of findings

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24
Q

SOAP: P

A

Plan: Appropriate recommendations and follow-up

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25
CPT Code
Current Procedural Terminology: -5-digit code for procedures and services -Managed by AMA -Used for documentation and Reimbursement
26
ICD
International Classification of Disease: -Global standard for reporting and monitoring diseases -Represented by 3-7 characters -Current version is ICD-11
27
ICF
International Classification of Functioning, Disability, and Health: -Created by WHO -Considers relationships between health condition, body functions and structures, activities and participation, & environmental and personal factors
28
Professionals Audiologists refer patients to
-SLP -ENT -Psychologist -Genetic Counselor
29
2 Goals of Amplification
1. Increase audibility of sounds 2. Ensure comfort for loud sounds
30
Microphone function
Converts acoustic signal into electrical signal
31
Processor function
Filters and amplifies electrical signal
32
Receiver function
Converts electrical signal into acoustic signal
33
CROS Hearing Aid
Contralateral Routing of Signal: -Used for profound unilateral sensorineural hearing loss -Sound delivered wirelessly to opposite (good) ear with receiver
34
Blue Battery Number
675
35
Orange Battery Number
13
36
Brown Battery Number
312
37
Yellow Batter Number
10
38
675 Battery Color
Blue
39
13 Battery Color
Orange
40
312 Battery Color
Brown
41
10 Battery Color
Yellow
42
Feedback
Amplified sound escapes out of ear canal, reaches microphone, and becomes further amplified, resulting in a "whistling" or "squealing" sound
43
Occlusion Effect
Increase in amplitude of bone conducted sound due to earmold plugging up ear canal
44
5 Steps to Obtain a Hearing Aid
1. Assessment 2. Hearing Aid Evaluation 3. Verification & Orientation 4. Initial Follow-Up (1-2 Weeks after fitting) 5. Routine Follow-Up Appointments (Every 6-12 months, or as needed)
45
Verification
Determine if hearing aid is functioning the way you intended
46
Orientation
Instructioning patient to proper care, use, and expectations
47
Validation
Determine if hearing aids are making a positive impact on communication
48
Real Ear Measures
-Used to determine if hearing aids are providing appropriate amplification -Probe mic placed in ear, recorded speech is presented, output is measured by probe
49
Electroacoustic Check
Measurements to ensure that the hearing aid is functioning according to the manufacture's specifications
50
Listening Check Components
-Visual Check -Check Battery with tester -Does it turn on? -Amplify sound? -Cut in and out? -Do buttons work? -Static or distortion? -Feedback? -Say the Ling 6 sounds
51
Professionals who can preform a listening check
-SLP -Audiologist
52
Ling 6 Sounds
-Span range from low to high frequency speech sounds -Determine if they sound clear to you -oo, ee, ah, s, sh, m
53
Nonlinear gain
Provides more gain for soft sounds, less gain for loud sounds (for audibility and comfort)
54
FM System
-Speaker wears wireless mic with FM transmitter -Listener wears FM receiver -Speaker's voice directly sent to listener's ear -Reduces impact of background noise and reverberation
55
Telecoil
-A wire built into hearing aids that captures an electromagnetic signal from phones and looped rooms -Has improved signal-to-noise ratio
56
Assistive Listening Devices
-Used to improve signal-to-noise ratio and alert listeners with hearing loss -Can be used alone or with amplification
57
Bone Anchored Hearing Aid Components
-Titanium abutment implanted into mastoid bone -External sound processor attaches to abutment -Processor includes microphone, amplifier, and bone oscillator
58
Bone Anchored Hearing Aid Candidates
-Permanent bilateral conductive or mixed hearing loss -Profound unilateral sensorineural hearing loss (single-sided deafness)
59
Middle Ear Implant Components
-Audio Processor -Implanted receiver -Transducer placed on ossicles
60
Middle Ear Implant Candidates
-Sensorineural, conductive, or mixed hearing loss
61
Part of auditory system that cochlear implants stimulate
Stimulate Auditory Nerve electrically
62
What parts do cochlear implants bypass?
Outer, middle, and inner ear
63
External Cochlear Implant Parts
-Microphone -Processor -Volume Control -Battery -Headpiece
64
Internal Cochlear Implant Parts
-Magnet -Coil -Electrode Array
65
Number of Electrodes in a Cochlear Impant
12 to 22
66
Steps to get a Cochlear Implant
1. Diagnostic Hearing Evaluation 2. Cochlear Implant Evaluation 3. Surgery 4. Initial Activation (2-4 weeks after surgery) 5. Routine follow-up appointments for life
67
Cochlear Implant Evaluation Components
-Medical Evaluation including CT scan -Audiologic Evaluation including testing with hearing aids -Cochlear implant counseling/orientation
68
Cochlear Implant Candidacy for Adults
-Bilateral moderate sloping to profound sensorineural hearing loss -Limited benefit from hearing aids -Single-sided deafness
69
Cochlear Implant Candidacy for ages 2-17
-Bilateral severe sloping to profound sensorineural hearing loss -Limited benefit from hearing aids -Scores of
70
Cochlear Implant Candidacy for ages 9-24 months
-Bilateral profound sensorineural hearing loss -Limited benefit from hearing aids
71
Measure of Cochlear Implant Outcomes for Adults
Word and sentence recognition
72
Measure of Cochlear Implant Outcomes for Children
-Speech recognition -Speech production -Language Development
73
Who shows the best outcomes with Cochlear implant patients?
-Post-lingually deafened adults -Children implanted before age 2
74
Cochlear Implant Team Members
-Family/patient -Surgeon (neurotologist) -Audiologist -SLP -Pediatrician -Teacher
75
Cochlear Implant Programming
-Mapping -Implant connected to computer interface, audiologist controls stimulation to implant -Involves finding theshold and comfortable loudness level at each individual electrode -Ensure speech is audible and comfortable -Performed routinely on each patient
76
Hybrid Cochlear Implant
-Only a short electrode is inserted into the base of the cochlea to stimulate high frequencies -Also functions as an air conduction hearing aid to amplify low frequencies acoustically
77
Hybrid Cochlear Implant Candidates
For patients with better low frequency hearing who do not qualify for a standard cochlear implant
78
Auditory Brainstem Implant
Where electrode array is placed on cochlear nucleus instead of inside cochlea
79
Auditory Brainstem Candidates
-Bilateral Acoustic Neuromas (NF-2) -Ossified Cochlea -Abnormal or Absent Auditory Nerve
80
Systems used in the sense of balance
-Vision -Vestibular System -Proprioception
81
Horizontal Canal Motion
Turning head left and right
82
Superior Canal Motion
Nodding head up and down
83
Posterior Canal Motion
Touching ear to shoulder or doing a cartwheel
84
Utricle motion
Horizontal acceleration like a car
85
Saccule Motion
Vertical acceleration like riding an elevator
86
Vestibulo-Occular Reflex (VOR) purpose
Allows stable image on retina during head rotation
87
Nystagmus
-Involuntary eye movement -Vestibular disorders can cause abnormally high or low amounts of nystagmus
88
Benign Paroxsymal Positional Vertigo (BPPV) definition
Otoconia become displaced into semicircular canals, causing them to become stimulated by gravity (vertigo, imbalance, nausea)
89
BPPV Diagnosis technique
Dix-Hallpike Maneuver
90
BPPV Treatment
Epley Maneuver
91
Tinnitus Definition
Phantom perception of sound in ears/head (ringing, buzzing, chirping, clicking, etc.)
92
How many Americans are affected by Tinnitus?
-20 million with burdensome tinnitus -2.5 million with severe or debilitating tinnitus
93
Damage to what part of ear causes tinnitus?
Any part: outer, middle, inner, or CNS
94
Does tinnitus always occur with hearing loss?
No
95
Tinnitus Management
-Counseling -Masking noises
96
Hyperacusis Definition
Abnormal perception of loudness
97
Misophonia Definition
Abnormal emotional reaction to certain sounds