Deck 7: Masking and Audiogram Interpretation

Question 1

How is the Weber test performed?

Answer 1

The Weber test is performed by presenting a low-frequency tone through a bone vibrator placed on the midline of the forehead.The patient is instructed to report where the tone is heard right

Question 2

The most effective masking noise in speech audiometry is:

A)Broadband noise BBN)
B)White noise
C)Speech noise
D)Narrowband noise

Answer 2

C

Question 3

Minimum inter-aural attenuation for insert earphones in air-conduction testing is:
a.0 dB
b.40 dB
c.60 dB
d.80 dB

Answer 3

c.60 dB

Question 4

Explain the difference between minimum and maximum masking.

Question 5

If the amount of masking noise is insufficient to prevent cross-over,what type of masking would this be?

A)Sufficient masking
B)Undermasking
C)Overmasking
D)None of the above

Question 6

Which of the following occurs when stimulus intensity in the test ear exceeds inter-aural attenuation:
a.Cross hearing
b.Cross masking
c.The occlusion effect
d.The Weber effect

Question 7

Masking is almost never required in speech audiometry.

Question 8

An important difference between the SAL test and conventional bone-conduction testing is:

A)Masking noise is presented via bone conduction rather than air conduction
B)Masking noise is presented via air conduction rather than bone conduction
C)Both ears are uncovered during the SAL test
D)There is no difference between the two techniques

Question 9

The interaural attenuation for bone-conduction testing is ______.

Question 10

What criteria are used to determine if AC masking is required?

Question 11

When the stimulus is heard in the non-test ear,_____ occurs.

Question 12

The reduction in intensity when sound is transmitted from other ear to the other through or around the head is called ___________.

Question 13

The most effective masking noise in pure tone hearing testing is:

A)Broadband noise BBN)
B)White noise
C)Speech noise
D)Narrowband noise

Question 14

Minimum interaural attenuation for supra-aural earphones in air-conduction testing is:

A)0 dB
B)40 dB
C)60 dB
D)80 dB

Question 15

The goal in masking is to:

A)Verify accurate hearing test results
B)Ensure that the nontest ear is not contributing to the patient's response
C)Use an effective level of masking in the nontest ear
D)All of the above

Question 16

Describe the occlusion effect.

Question 17

In Hood's plateau method,what is the definition of a masked threshold?

A)The level at which the signal is still audible even though the masker level is increased by several steps.
B)The level at which the signal remains inaudible even though the masker level is increased by several steps.
C)The masker level at which the signal first becomes inaudible.
D)The masker level at which the signal first becomes audible.

Question 18

While deciding to measure masked AC thresholds,which of the following should be considered?

A)Only the unmasked AC threshold/presentation level in the test ear
B)Only the amount of inter-aural attenuation
C)Only the BC threshold of the non-test ear
D)All of the above Short Answer

Question 19

Covering an ear during bone-conduction testing produces the __________.

Question 20

An increase or shift in hearing threshold in the test ear when a modest amount of masking is presented to the non-test ear is known as:

A)The Bing effect
B)Under-masking
C)Central masking
D)The occlusion effect

Question 21

Define the masking dilemma.