Deck 8: Electro-Acoustic Measures

Question 1

A very high ear canal volume estimated during acoustic immittance measurement usually indicates a ____________________.

Answer 1

Tympanic membrane perforation

Question 2

The most common stimulus used to elicit TEOAEs is a ______________________.

Answer 2

Click

Question 3

Which of the following statements is true?

A)Only the stapedius muscle is involved during the activation of the acoustic reflex.
B)Only the facial nerve is involved during the activation of the acoustic reflex.
C)Only the ossicles are involved during the activation of the acoustic reflex.
D)Many structures in the middle ear and the central auditory pathway are involved during the activation of the acoustic reflex.

Answer 3

D

Question 4

OAEs presence is defined by amplitude that is at least _________ above the noise floor.

Question 5

Acoustic immittance tests can be performed with the ear canal open.

Question 6

What does the peak pressure in a tympanogram represent?

A)The pressure at which the tympanic membrane is the most compliant
B)The pressure at which the tympanic membrane is the least compliant
C)The maximum pressure that the tympanic membrane can sustain without rupturing
D)The minimum pressure that the tympanic membrane can sustain without collapsing

Question 7

The sound used in acoustic immittance measurement is known as the _________ tone.

Question 8

Two acoustic immittance tests are ______________ and ______________

Question 9

The most common test stimulus in DPOAEs measurement is ____________.

Question 10

Which of the following is the correct description of the measurement of a contralateral acoustic reflex in the right ear?

A)Stimulus in the left ear and reflex measured in the left ear
B)Stimulus in the left ear and reflex measured in the right ear
C)Stimulus in the right ear and reflex measured in the right ear
D)Stimulus in the right ear and reflex measured in the left ear Short Answer

Question 11

What is the peak pressure for a type C tympanogram?

A)Beyond -150 daPa
B)Beyond -50 daPa
C)Beyond +200 daPa
D)Between ± 100 daPa

Question 12

The acoustic reflex involves contraction of the ________________muscle.

Question 13

A perforated tympanic membrane would result in a _____ type tympanogram.

Question 14

What is an indicator of the activation of the acoustic reflex?

A)Contraction of the stapedius muscle
B)Stiffening of the ossicular chain
C)Reduced compliance of the middle ear structures
D)All of the above

Question 15

The abbreviations TEOAE and DPOAE stand for ______ and ________,respectively.

Question 16

What are the components of an immittance probe?

A)Three microphones
B)A loudspeaker and two microphones
C)A microphone and two loudspeakers
D)A microphone,loudspeaker,and manometer

Question 17

Name the different types of tympanograms commonly measured,with examples for when each may be found.

Question 18

Acoustic immittance recorded at a single air pressure is called _____.

Question 19

OAEs are always normal when pure tone audiometry is normal.

Question 20

The abbreviation ART stands for __________.

Question 21

List some applications of OAEs in clinical audiology.

Question 22

Describe two important advantages of electroacoustic auditory measures over behavioral tests like pure tone audiometry.

Question 23

Describe where and how otoacoustic emissions are generated.