Final Exam Flashcards

1
Q

Pure tone audiometry tests the patient’s hearing thresholds at frequencies from….

A

125 to 8,000 Hz

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2
Q

What is pure tone audiometry?

A

A test that determines hearing thresholds, the lowest intensity sound a person can hear 50% of the time. It is often conducted inside a soundproof booth to eliminate interferences.

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3
Q

Unmasked bone conduction gives thresholds for:

A

The better ear only

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4
Q

The “noise notch” is a dip in hearing thresholds at:

A

4,000 Hz

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5
Q

The ______________ gives an estimate of how much conversational speech is accessible to the listener.

A

Audibility Index

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6
Q

The primary purpose of masking is:

A

To ensure testing is accurate when one ear is better than the other

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7
Q

Type A Tympanometry

A
  1. Normal
  2. Normal mobility of the TM
  3. Normal middle ear pressure
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8
Q

Type B Tympanometry

A
  1. Restricted mobility of the TM
  2. Cerumen impaction
  3. Middle ear fluid
  4. OM
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9
Q

Type C Tympanometry

A
  1. Normal mobility of TM
  2. Negative middle ear pressure
  3. Eustachian tube dysfunction
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10
Q

Type As Tympanometry

A
  1. Reduced mobility of TM and ossicles
  2. Normal middle ear pressure
  3. Otosclerosis
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11
Q

Type Ad Tympanometry

A
  1. Hypermobility of TM and ossicles
  2. Normal middle ear pressure
  3. Disarticulation of ossicular chain
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12
Q

ASHA recommends screening children at:

A

1,000, 2,000, & 4,000 Hz at 20 dB

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13
Q

“Nonorganic hearing loss” refers to a hearing loss that:

A

Is intentionally fabricated for financial gain and attention or psychologically related

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14
Q

An assessment which requires the patient to wear goggles that track their eye movement is called:

A

Videonystagmography

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15
Q

Conductive hearing loss can be managed using:

A

BC hearing aids

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16
Q

Cochlear implants might be recommended for a patient who has:

A

A severe/profound hearing loss and does NOT benefit from hearing aids

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17
Q

Auditory Verbal Therapy focuses on:

A

Hearing only, with no gestures or sign language

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18
Q

Conductive hearing loss (audiogram)

A

AC thresholds in one or both ears are greater than 20 dB, but BC is normal; air-bone gap is 10 dB or more

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19
Q

Sensorineural hearing loss (audiogram)

A

AC thresholds in one or both ears are greater than 20 dB and BC thresholds are at the same or similar levels

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20
Q

Mixed hearing loss (audiogram)

A

AC and BC thresholds in one or both ears greater than 20 dB, but BC thresholds are better than AC thresholds by 15 dB or more

21
Q

Asymmetrical hearing loss

A

Hearing loss in each ear with one being significantly more impaired than the other

22
Q

Masked left ear BC

A

]

23
Q

Masked right ear BC

A

[

24
Q

Pure Tone Averages (PTAs)

A

Average of AC thresholds at 500, 1,000, and 2,000 Hz in each ear

25
Q

The bilingual-bicultural model of aural habilitation is the preferred approach of:

A

The Deaf community

26
Q

Speech Reception Threshold (SRT)

A

AKA speech recognition threshold, the minimum hearing level at which a patient can UNDERSTAND speech 50% of the time

27
Q

Ability to balance relies on:

A
  1. Visual Input- provides direct information about orientation
  2. Proprioceptive Input- provides tactile information from body tissues about body part positioning
  3. Vestibular Input- provides information based on inertia and gravity
28
Q

Vestibular System

A

Vestibule of cochlea contains the utricle (detects movement in a horizontal plane) and saccule (detects movement in the vertical plane). Semicircular canals allow us to detect nodding, shaking, or tilting as fluids shift due to head movement.

29
Q

Speech Detection Threshold (SDT) vs Speech Recognition Threshold (SRT)

A

SDT is the minimum hearing level one can DETECT the presence of speech while SRT is the minimum hearing level one can UNDERSTAND speech. SDTs are expected to be lower than SRTs (about 5-10 dB lower) because detection is possible at a softer level than understanding

30
Q

SRT testing uses spondee words which are:

A

Words with 2 syllables that are equally stressed (hotdog, pancake, mailbox)

31
Q

Caloric Test

A

Water is introduced against the TM to observe eye movements; COWS (Cold Opposite, Warm Same)
Nystagmus (jerking movements of the eye) beats away to the opposite ear when using cold water and beats towards the same ear with warm water

32
Q

Computerized Dynamic Posturography (CDP)

A

Tests patient’s ability to compensate for changes to their position; assesses balance and determines postural stability

33
Q

Dynamic Range

A

Difference between a person’s thresholds and uncomfortable loudness level (UCL)

34
Q

AC vs BC

A

AC is tested using headphones or inserts and BC is tested using a BC transducer which rests on the mastoid bone (bone oscillator is used); highest tested for AC is 8,000 and BC is 4,000 because if it gets any higher it is heard via AC and if it’s lower than 250 Hz there is a vibrotactile response (so slow they can feel it)

35
Q

Word recognition scores

A

Poor scores may be due to a language barrier rather than poor speech understanding; word lists are available in different languages and examiner must be competent of the language being used

36
Q

Tympanometry procedure

A
  1. A probe tip is placed in the ear canal and a seal is obtained
  2. A puff of air and tone are presented to the ear
  3. Patient must be still (no chewing or swallowing)
37
Q

Tinnitus

A

Ringing, hissing, roaring, or buzzing in the ears that may be due to noise exposure, ear infection, Meniere’s disease, trauma, medications, presbycusis, fatigue, anxiety, etc.

38
Q

Masked AC right ear

A

Red triangle

39
Q

Masked AC left ear

A

Blue square

40
Q

Tympanometry

A

Measures middle ear pressure in response to changes in air pressure in the EAM to assess movement of the tympanic membrane

41
Q

Masking

A

Isolates the test ear by “distracting” the non-test ear with white noise. It’s applied for BC if an air-bone gap exists (>10 dB)

42
Q

Treatment for tinnitus includes:

A
  1. Amplification
  2. Masking noise
  3. Biofeedback
  4. Cognitive therapy/counseling/mindfulness/relaxation
  5. Neuromonics
  6. Tinnitus Retraining Therapy (TRT)
  7. Audiologic Tinnitus Management (ATM)
43
Q

Hearing Aids

A

Sound enters the microphone, transduces acoustic energy into electrical, processor/amplifier filters the signal and amplifies the sound; earmold made of silicone that fits in patient’s ear and is easily and cheaply replaceable

44
Q

BC Aids

A

Adhesive, worn on soft headband, or connected to head via magnetic or button attachment; transmits the electrical signal transcutaneously to the internal receiver/stimulator

45
Q

Aural rehabilitation for adults

A

Communication strategies training
- Assertiveness, environmental management, breakdown repair, anticipatory strategies, reduce maladaptive strategies
Counseling/support groups
Frequent partner training

46
Q

Aural habilitation with children

A
  1. Auditory Verbal Therapy
  2. Auditory Oral Approach: emphasizes use of hearing for language development, but uses lip reading, body language, and gestural cues
  3. Total communication: any and all modalities for language development (spoken and sign language, written language, gestures, lip reading)
  4. Manual approach: uses manual language only
47
Q

Unmasked left BC

A

>

48
Q

Unmasked right BC

A

<

49
Q

SRTs and PTAs

A

If they differ by 13 dB or more, it is considered poor (Auditory Neuropathy)