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HESP 630 > Kahoot Review Questions > Flashcards

Kahoot Review Questions Flashcards

1
Q

What type of transducer is recommended for ABR testing?

A

Insert earphones

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2
Q

With this kind of polarity, the TM is displaced laterally

A

Rarefaction

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3
Q

The SNRAVG is determined by input signal amplitude/output signal amplitude times what?

A

Square root of # of averages

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4
Q

Majority of frequency energy in cortical response is below:

A

15 Hz

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5
Q

An 8-bit A/D converter has an amplitude resolution of how many points?

A

256

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6
Q

60-Hz line noise would correspond to what period?

A

17 ms

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7
Q

Increasing the # of averages has what effect on the response?

A

Increases the SNR

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8
Q

An increase in rate corresponds to what increase in latency in normal ears?

A

0.1 ms/10 Hz

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9
Q

The use of this polarity may result in earlier Wave V latencies

A

Rarefaction

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10
Q

With a 25k sampling rate, a conversion is made every 40 microsec and is known as the

A

dwell time

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11
Q

What would be an appropriate rate for an ABR?

A

21.1 Hz

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12
Q

How much amplification is applied to ABR recordings?

A

100k

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13
Q

An appropriate filtering range for Cortical (late potentials) would be:

A

1-40 Hz

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14
Q

What ASSR rate produces the largest response in awake adults?

A

40 Hz

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15
Q

ASSR is different from the ABR in all but the following ways:

A

ASSR requires neural synchrony

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16
Q

What is a disadvantage of ASSR?

A

Good predictor of normal hearing thresholds

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17
Q

What can be done to prevent adaptation?

A

Use an amplitude-modulated tone

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18
Q

The ASSR frequency that is being tested is known as the:

A

Carrier frequency

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19
Q

ASSR uses an automatic detection algorithm to evaluate frequency strength and…

A

Phase coherence

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20
Q

What is the appropriate modulation rate for evaluating the cortex?

A

20 Hz

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21
Q

Which ASSR rate is not affected by sleep state?

A

80 Hz

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22
Q

What statistic is used to determine if the power of the response> EEG noise?

A

F-test

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23
Q

At what age is the ASSR more easily detected?

A

3 weeks

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24
Q

What is a risk factor for hearing loss?

A

An Apgar score of 0-6 at 5 minutes

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25
Q

What is considered an adequately low referral rate for screening ABR?

A

<4%

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26
Q

Sedatives have the greatest effect on…

A

Late potentials

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27
Q

The following pattern may indicate severe brainstem dysfunction:

A

Waves absent above Waves I and II

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28
Q

Under what circumstances would a slight Wave I-V prolongation be a concern?

A

Young female

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29
Q

Under what circumstance would you find peak latencies equally shifted across intensity levels?

A

Conductive hearing loss

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30
Q

Responses to click stimuli are in greatest agreement with thresholds in what frequency range?

A

2-4 kHz

31
Q

Interaural latency differences should not exceed:

A

0.2 to 0.3 ms

32
Q

The following montage increases the separation between Waves IV and V:

A

Vertical with contralateral reference

33
Q

The following montage increases Wave I amplitude:

A

Horizontal montage

34
Q

The absence of otoferlin results in:

A

Abolishing calcium-triggered exocytosis

35
Q

What is a factor that increases the likelihood of a Bifid Wave I?

A

High stimulus level

36
Q

What is the electrode that is placed in the ear canal but does not touch the TM?

A

Tip-trode

37
Q

Which of the ECochG components produces direct current for the duration of the stimulus?

A

Summating potential

38
Q

Children discharged from the neonatal intensive care unit (NICU) who show absent ABRs…

A

have thresholds that cannot be reliably estimated from ABRs

39
Q

The ECochG responses recorded from children discharged from the NICU show…

A

prolonged duration in more than half of patients

40
Q

Which electrode is placed on the surface of the TM?

A

Tymptrode

41
Q

Which of the following ECochG reflects alternating current from OHCs at basal turn of cochlea?

A

Cochlear microphonic

42
Q

What is the most commonly used analysis technique for ECochG recordings in Meinere’s diagnosis?

A

Ratio of SP/AP amplitude

43
Q

When will the ABR in children with ANSD not be present?

A

Recording to stimuli with alternating polarities

44
Q

What is the minimum inter-aural latency difference that may suggest retrocochlear pathology?

A

0.2 ms

45
Q

The normal intra-wave I-V delay is…

A

~4 ms

46
Q

What would a large peak following wave V indicate?

A

Post-auricular muscle artifact

47
Q

What is a response to a stimulus that is not time locked?

A

Induced

48
Q

What is an example of a following response?

A

40 Hz

49
Q

Which structure does not have spatially aligned dendrites?

A

Thalamus

50
Q

How could you describe an action potential?

A

Fast changes in membrane potential that last 1 ms

51
Q

What are + and - voltages separated in space called?

A

Dipoles

52
Q

Which evoked response is labeled with roman numerals?

A

ABR

53
Q

What carries information from 1 neural structure to the next?

A

Action potential

54
Q

Which surgical approach allows good access to the root entry zone of the auditory nerve?

A

Retrosigmoid

55
Q

Which surgical approach is best for avoiding facial nerve damage?

A

Translabyrinthine

56
Q

Which surgery approaches allow the possibility of hearing preservation?

A

Retrosigmoid and middle fossa

57
Q

What is not a good indicator for IOM?

A

When the patient has no insurance

58
Q

What are the components of the AN-CAP?

A

N1 and P1

59
Q

What is the name of the damage that is caused by interrupted blood supply?

A

Ischemic

60
Q

Children with speech-in-noise deficits have the following FFR abnormalities…

A

Prolonged latencies in noise

61
Q

What behavioral-FFR relationship was found in toddlers?

A

Consonants-in-noise score relates to phonological processing

62
Q

What FFR characteristics are found in children with autism?

A

Disrupted pitch tracking

63
Q

Older adults with poor speech-in-noise performance have the following FFR characteristics…

A

Greater degradative effects of noise

64
Q

Older adults have the following FFR characteristics compared to younger adults…

A

Lower phase locking

65
Q

The ABR may miss a tumor because…

A

The ABR may not show abnormalities when the tumor is small

66
Q

Under what circumstance would you not expect to find significant interaural latency differences…

A

Unilateral mild sensorineural hearing loss

67
Q

When using Blackman ramping, the duration of the envelope for 1000 Hz would be…

A

4 sec., 2 sec

68
Q

What is an appropriate rate when performing threshold testing in babies?

A

39.1 Hz

69
Q

What polarity should be used with bone conduction testing?

A

Alternating

70
Q

At what wave peak to trough amplitude should you stop averaging?

A

40 nV or more

71
Q

When is a “no response” detected?

A

You have a flat waveform with residual noise that is <25 nV

72
Q

At what age are ABR latencies the earliest?

A

5-8 years old

73
Q

What is a sex effect on ABR?

A

Earlier latencies and larger amplitudes in females

HESP 630 (10 decks)

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