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Audiology Quiz 3 > Definitions for Midterm > Flashcards

Definitions for Midterm Flashcards

1
Q

Pure Tone Audiometry

A
  • pure tones do not exist
  • have to be manufactured through an audiometer
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2
Q

pure tone testing HZ

A

250, 500, 1000, 2000, 4000, 8000 HZ
- test these because these are the typical frequencies in which speech sounds are said
- usually start at 1000 HZ (easy one to hear), 40dB

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3
Q

pure tone testing dB

A
  • start at 40db
  • if patient responds, drop by 10db until they don’t respond of until you have reached 0 dB
    if the patient does not respond, go up by 5dB
  • if they don’t hear it at 40dB, increase by 10dB until they do
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4
Q

Symbols used in audiogram

A

-red for right ear
- blue for left

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5
Q

pulsing sound for audiogram rather than steady sound

A
  • easier to hear if you have tinnitus
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6
Q

IF there is more than a 20dB gap between 500 and 1000, what do you do

A
  • you have to test the half octave (750, 3000, 6000)
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7
Q

Textbook way to establish a pure tone threshold

A
  • start at 40dB, down 10, up 5
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8
Q

symbol for sound field

A
  • s
  • child is being tested by a speaker
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9
Q

if someone knows theyre better with one ear

A
  • start testing the better ear
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10
Q

speech detection/awareness threshold

A
  • the lowest level in dB at which a subject can barely detect the presence of speech and identify it as speech
    -obtained the same method as pure tones
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11
Q

when is speech detection used

A
  • pediatrics, language barriers, or special needs
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12
Q

speech reception threshold

A
  • point when they can identify the words (2 syllables) that is being said with 50% accuracy at a certain decibel
  • being able to understand the word that is being said
  • baseball, hotdog,
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13
Q

Speech Audiometry in what db

A
  • in dB HL
  • unless in the sound FINISH THIS
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14
Q

SRT vs Audiogram

A
  • the SRT will correlate to the audiogram with the pure tone average -should be within 7dB pure tone average
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15
Q

Why do you SRT first

A
  • it is harder to fake it during a SRT rather than on an audiogram (pure tones)
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16
Q

pure tone average

A
  • 500Hz at 25db, 1000 30db, 2000 35dbHz
  • add these together than divide by three
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17
Q

SRT should be between ___?

A

25db and 35db

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18
Q

Word discrimination testing

A
  • obtained 40dB Supra (above) the-SRT threshold
  • done 40 dBSL the SRT
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19
Q

What are the words like in the word discrimination test

A
  • monosyllabic words
  • phonemically balanced word lists to ensure they are tested for accuracy and intelligibility for a patient
  • hot, mess, bat
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20
Q

Why do we do word discrimination testing?

A
  • main goal is to see how well a person will perform with hearing aids
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21
Q

recruitment refers to what

A
  • refers to a condition related to some hearing loss
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22
Q

recruitment causes

A
  • your perception of sound to be exaggerated
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23
Q

recruitment definition

A
  • usual loudness growth of sound
  • if too loud, the sounds can become distorted, decreasing their discrimination
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24
Q

why do you ask if your voice is to soft/loud before the word discrimination test

A
  • chances of recruitment
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25
Q

word recognition scoring

A
  • scored as a percentage and a range
  • typically given with 50 words at 2% each
26
Q

word recognition scoring (scores)

A
  • excellent 90-100%
  • good 80-89%
  • fair 70-79%
  • poor 69% or lower
  • those below= still amplify when appropriate
27
Q

Bone conduction

A
  • decode the sound waves and convert them into vibration that can be received directly by the cochlea
  • eardrum is never involved
  • takes place of ear drum
  • put on mastoid (closest part to cochlea)
28
Q

threshold tested during bone conduction

A
  • 500, 1000, 2000, 4000Hz
29
Q

what do bone conduction thresholds do in a sensorineural hearing loss

A
  • they will match the air conduction thresholds
30
Q

what do bone conduction thresholds do in a conductive hearing loss

A
  • there will be an air/bone gap
  • only conductive if the bone scores are normal
31
Q

bone conductor:

A
  • takes place of ear drum
  • put on mastoid (closest part to cochlea)
32
Q

Audiogram conductive vs air

A
  • if the bone is no greater than 15dB than the air, it is conductive hearing loss (in kids)
33
Q

Order of Test Battery

A
  • tympanometry
  • speech reception threshold
    -pure tone testing
  • word discrimination/recognition testing
  • bone conduction testing
34
Q

WHY THIS ORDER

A
  • tympanometry first to see speech reception level first
  • mainly to rule out malingering
35
Q

cross hearing air conduction

A
  • when there is a threshold of 40dB or more at any frequency, masking will happen
36
Q

point of masking

A
  • keep the better ear busy
37
Q

cross hearing bone conduction

A
  • when there is a 15dB difference or greater between bone conduction and air conduction scores, the air conduction on the opposite ear needs to be “kept busy” while actual thresholds on the opposite ear are being established
38
Q

No hearing loss

A

0-25dB

39
Q

Mild hearing loss

A

26-40dB

40
Q

Minimal Hearing loss

A
  • pediatrics: schools
    16-25dB
41
Q

Moderate hearing loss

A

41-55dB

42
Q

Moderately Severe hearing loss

A

56-70dB

43
Q

Severe hearing loss

A

71-90 dB

44
Q

Profound hearing loss

A

91+ dB

45
Q

Types of hearing loss

A
  • conductive (bone)
  • sensorineural (air)
  • mixed
  • central
46
Q

conductive hearing loss

A
  • hearing loss originating in the outer and/or middle ear
47
Q

conductive hearing loss causes

A
  • middle ear fluid
  • ear wax
    -eardrum perforation
48
Q

conductive hearing loss on the audiogram

A
  • air conduction responses greater than 25 dB HL (20 for pediatrics)
  • bone conduction thresholds normal
  • at least 15dB gap between air conduction thresholds and bone conduction thresholds
49
Q

Conductive hearing loss presentation and management

A
  • involves overall reduction in sound level (volume) that reaches the inner ear (cochlea)
  • harder to hear low level (volume) sounds
  • typically corrected through medical management
50
Q

sensorineural hearing loss

A
  • impairment of inner ear or hearing nerve
  • permanent
51
Q

sensorineural hearing loss causes

A
  • aging
  • noise exposure
  • virus
52
Q

sensorineural hearing loss presentation and management

A
  • reduction in sound level (volume)
  • typically affects clarity of speech
  • typically habilitated with amplification
53
Q

sensorineural hearing loss on the audiogram

A
  • air conduction thresholds greater than 25 dB HL (20dB for pediatrics)
  • bone conduction thresholds greater than 25 dB HL
  • no more than a 15 dB gap between air conduction and bone conduction thresholds
54
Q

mixed hearing loss

A
  • combination of conductive and sensorineural hearing loss
  • you describe the air conduction scores
55
Q

central hearing loss

A
  • occurs when the auditory center of the brain is affected by tumors, injury, disease, or other unknown causes
56
Q

damage to auditory center can cause

A
  • difficulty with localization and lateralization
  • difficulty with auditory discrimination
  • difficulty with auditory pattern recognition
  • difficulty with timing aspects of sounds
  • difficulty understanding degraded or competing acousitc signals
57
Q

configuration of hearing loss

A
  • words used to describe the shape/slope of the hearing loss, to give the reader a mental image of the hearing loss should the audiogram be unavailable
  • sloping
  • rising
  • flat
  • gradual sloping
  • cookie bite (smiley face)
58
Q

when writing a description of audiogram

A
  • say if its both ears or separate
  • talk about both ears if asymmetrical
  • shape
  • type
  • frequency
59
Q

cookie bite hearing loss

A
  • usually genetic in origin
60
Q

test-to-test reliability

A

5-10dB

Audiology Quiz 3 (2 decks)

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