Exam 3 Part 3

Question 1

Administering the hearing test with certain procedures

Answer 1

Audiometry

Question 2

Results of the hearing test

Answer 2

Audiogram

Question 3

What are the advantages of using headphones (3)?

Answer 3

• Test each ear in isolation
• Control acoustical features more accurately
• Decrease effects of ambient noise

Question 4

What are the disadvantages of using headphones (3)?

Answer 4

• Not natural
• Lose natural resonance of ear canal
• Lose binaural benefit

Question 5

Stimuli presented through speakers

Answer 5

Sound field testing/speakers

Question 6

Lowest level of sound heard when stimuli are presented through speakers

Answer 6

Minimal audible field (MAF)

Question 7

How much more sensitive is sound field testing than through earphones?

Answer 7

6-10 dB

Question 8

What can we use to measure MAP?

Answer 8

earphones/headphones

Question 9

What can we use to measure MAF?

Answer 9

Speakers/sound field

Question 10

Why is MAF more sensitive than MAP?

Answer 10

In MAF you are using both ears to hear sound rather than 1 ear independently

Question 11

What are the advantages using speakers?

Answer 11

Canal resonance benefit

Use of binaural hearing

Question 12

What are the disadvantages of using speakers (4)?

Answer 12

• Reverberation
• Head shadow
• Body baffle
• Cannot test ears independently

Question 13

Reflected sounds collide with each other and/or with incident sound and cause alteration of SPL

Answer 13

Reverberation

Question 14

Head gets in the way

Answer 14

Head shadow effect

Question 15

Body serves as a medium which can reflect and absorb sound

Answer 15

Body baffle

Question 16

developed by combining large amounts of data on hearing threshold at many frequencies for young adults with no auditory pathology

Answer 16

dB HL

Question 17

Governs the standards for normative values as well as calibration standards

Answer 17

American National Standards Institute (ANSI)

Question 18

0’s in dB HL

Answer 18

Audiometric zeros

Question 19

What do we use to determine normative values in hearing?

Answer 19

dB HL

Question 20

What do we test hearing at (8)?

Answer 20

250, 500, 1000, 2000, 3000, 4000, 6000, 8,000 Hz

Question 21

Record of thresholds at certain frequencies

Answer 21

Audiogram

Question 22

Lowest level of stimulus that the subject responds to at least two out of three times

Answer 22

Threshold

Question 23

Anything under ___ dB HL is normal hearing on an audiogram

Answer 23

20

Question 24

What are some factors that may affect hearing testing?

Answer 24

Age, frequency, testing environment

Question 25

when a patient indicates that the sound has been heard, the next sound is presented at a __ dB lower intensity

Answer 25

10

Question 26

When a patient indicates that the sound is not heard, the next sound is presented at a __ dB higher intensity.

Answer 26

5

Question 27

What is the most commonly use procedure in audiology to determine hearing threshold levels?

Answer 27

Down 10 Up 5

Question 28

What is the range of unmasked air conduction thresholds?

Answer 28

250-8000 Hz

Question 29

At what frequency is a tone that is easy to hear?

Answer 29

1000 Hz