Hearing Threshold Estimation – Tone-burst ABR

Question 1

Among the various stimuli recommended for threshold prediction using ABR, which is most widely recommended and used in clinical evaluation?

Answer 1

Tone bursts or tone pips

Question 2

When comparing ABR thresholds and behavioral thresholds

Answer 2

ABR thresholds are at a higher stimulus intensity level than behavioral thresholds

ABR thresholds are more similar in the high frequencies than the low frequencies

Question 3

In an individual with normal hearing, the latency of Wave V for a 2000 Hz tone burst is _________ than for a 500 Hz tone burst.

Answer 3

Shorter

Question 4

In an individual with normal hearing, the amplitude of Wave V for a 2,000-Hz tone burst at 60 dB nHL is _________ than for a 2,000-Hz tone burst at 20 dB nHL.

Answer 4

Higher

Question 5

Wave V latency typically reaches adult values at age

Answer 5

12-18 months

Question 6

When using a 2-0-2 cycle test paradigm for a 500-Hz tone burst, the rise and fall times will each be ______ and the plateau will be 0 ms.

Answer 6

4 ms

Question 7

What region of the cochlea is primarily activated by 100-microsecond click stimuli in an individual with normal hearing?

Answer 7

2-4kHz

Question 8

A chirp stimulus is designed to deliver ________ before _________ to the ear.

Answer 8

low frequencies before high frequencies

Question 9

In auditory neuropathy/dys-synchrony, ABRs are expected to be completely absent about ____ of the time.

Answer 9

75%

Question 10

A protocol for frequency-specific threshold estimation in infants and young children should include

Answer 10

air-conduction and bone-conduction stimuli