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Amplification 2 > Functional and Communication Needs Assessment: Objective Tests > Flashcards

Functional and Communication Needs Assessment: Objective Tests Flashcards

1
Q

What are some objective assessments of body structure and function?

A

TEN test (cochlear dead regions)
LDL

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2
Q

What are some objective assessments of activity limitations?

A

QuickSIN
Acceptable noise level (quantifies patient’s tolerance of background noise)

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3
Q

What is the rationale for LDL?

A

Individual tolerance levels vary significantly despite similar threshold loss.
LDL measurement is needed to ensure amplified output doesn’t exceed the individual’s loudness tolerance
Data used to program output and verify OSPL90/MPO limits

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4
Q

What frequencies should you always measure LDL for?

A

2000 and 3000 Hz

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5
Q

Why should you do LDL at 2-3 kHz?

A

These frequencies align with the ear canal’s resonant peak and a hearing aids greatest output so it’s important to be aware of that dynamic range

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6
Q

When should you do LDL for 500 Hz?

A

When the low frequency threshold is greater than or equal to 40 dB HL

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7
Q

Are technological recommendations based on a patient’s individual SNR loss?

A

Yes
Makes it so you don’t recommend too much or too little technology

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8
Q

What is SNR-50?

A

The signal-to-noise ratio that allows an individual to understand 50% of the test signal

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9
Q

What is a normal SNR value?

A

+2 dB

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10
Q

How do you calculate SNR loss?

A

Subtract the patients SNR-50 by the normal SNR-50 function (2)

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11
Q

What are some tests that measure SNR loss?

A

HINT
SPIN
QuickSIN ™
BKB-SIN (Bamford-Kowal-Bench)
Connected Speech Test
AZBio

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12
Q

What is the category for 0-2 dB SNR loss?

A

Normal

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13
Q

What is the category for 2-7 dB SNR loss?

A

Mild

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14
Q

What is the category for 7-15 dB SNR loss?

A

Moderate

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15
Q

What is the category for >15 dB SNR loss?

A

Severe

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16
Q

What are the technology needs for those with 0-2 dB SNR loss?

A

Omni or may benefit obtain benefit with directional microphones

17
Q

What are the technology needs for those with 2-7 dB SNR loss?

A

Recommend standard directional microphones

18
Q

What are the technology needs for those with 7-15 dB SNR loss?

A

Require beamforming microphones, in addition to standard directional mics

19
Q

What are the technology needs for those with >15 dB SNR loss?

A

Requires remote microphone, in addition to above recommendations

20
Q

What are some alternative QuickSIN test protocols?

A

Monaural presentation with headphones (detect asymmetric SNR loss)
Binaural presentation with headphones (function SNR loss by supplying binaural benefit)
Soundfield presentation (determine if aided SIN performance is improved or degraded)

21
Q

What level is the QuickSIN presented at for a soundfield presentation?

A

55 dB HL
Simulate normal conversational speech in noise

22
Q

What is the BKB-SIN?

A

QuickSIN for children
Easier, shorter sentences
For those patients who struggle with the QuickSIN

23
Q

Does the binaural QuickSIN quickly allow us to identify those with binaural interference?

A

Yes
If their scores degrade

24
Q

Why is the acceptable noise level test used?

A

To quantify a listener’s willingness to listen to speech in the presence of background noise

25
Q

What is the clinical usefulness of the acceptable noise level test?

A

Predictive of hearing aid satisfaction with 85% accuracy
Identifies those who will have more difficulty adapting to amplification

26
Q

What does a low ANL score mean?

A

Difference < 7 dB
Indicates the patient accepts a lot of background noise
Likely to wear hearing aids on a regular basis

27
Q

What does a high ANL mean?

A

Difference > 13 dB
Indicates the patient lacks tolerance for background noise
Less likely to wear hearing aids regularly

28
Q

What do ANL scores between 8-12 dB mean?

A

Equivocal
May require extra post fitting counseling or adjustment period

29
Q

What is the scoring for ANL?

A

MCL - BNL = ANL

30
Q

Does acceptance of noise improve when both directional mics and digital noise reduction are enabled?

A

Yes, due to research
Directional microphones alone only supported partial acceptance
DNR alone only showed minimal improvement

31
Q

In 2022, was it determined that the level of technology could effect acceptance of noise?

A

Yes
ANL was improved with premium devices

32
Q

Is QuickSIN the only test that can assess binaural interference?

A

Yes

Amplification 2 (13 decks)

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