Part 2.3

Question 1

Your client has an SRT of 45 dB, an MCL of 65 dB, and a UCL of 100 dB. Your DR is _____?

a) 20 dB
b) 35 dB
c) 55 dB
d) not enough information

Answer 1

c) 55 dB

SRT is bottom, UCL is top. MCL doesn’t have anything to do with it.

Question 2

What type of hearing loss results in the person speaking in a louder than normal voice?

a) conductive
b) sensorineural
c) mixed
d) central

Answer 2

b) sensorineural

He speaks loudly because he can’t hear himself.

Question 3

The type of hearing loss which results in a person speaking in a softer than normal speaking voice is called what?

a) conductive
b) sensorineural
c) mixed
d) central

Answer 3

a) conductive

He speaks softly because he can hear himself better through bone conduction.

Question 4

Changes in the spiral ganglia and hair cells are quite marked in

a) conductive losses
b) psychogenic losses
c) sensorineural losses
d) functional losses

Answer 4

c) sensorineural losses

Question 5

An increased reflection of sound on the tympanic membrane can be the result of _____?

a) a middle ear infection
b) a head injury
c) tinnitus
d) none of the above

Answer 5

a) a middle ear infection

Fluid behind the ear drum causes loss of tautness, thus the ear drum doesn’t vibrate, but just reflects the incoming sound.

Question 6

A small hole in the tympanic membrane can cause a loss of ____?

a) 0 dB HTL
b) 10-15 dB HTL
c) 20-25 dB HTL
d) 30-35 dB HTL

Answer 6

b) 10-15 dB HTL

Straight memorization.

Question 7

A blocking of or closure of the ear canal is called ____?

a) ataxia
b) atresia
c) aphasia
d) stenosis

Answer 7

b) atresia

Question 8

Loss of ability to understand or express speech, caused by brain damage.

a) stenosis
b) aphasia
c) ataxia
d) atresia

Answer 8

b) aphasia

Question 9

The abnormal narrowing of a passage in the body.

a) ataxia
b) aphasia
c) stenosis
d) atresia

Answer 9

c) stenosis

Question 10

Poor coordination and unsteadiness due to the brain’s failure to regulate the body’s posture and regulate the strength and direction of limb movements.

a) stenosis
b) aphasia
c) ataxia
d) atresia

Answer 10

c) ataxia

Question 11

The procedure of replacing the stapes with an artificial prosthesis is called _____?

a) myringotomy
b) stapedectomy
c) tympanoplasty
d) fenestration

Answer 11

b) stapedectomy

Question 12

A surgical incision into the eardrum, to relieve pressure or drain fluid.

a) Myringotomy
b) Tympanoplasty
c) Fenestration

Answer 12

a) Myringotomy

Question 13

The surgical operation performed for the reconstruction of the eardrum (tympanic membrane) and/or the small bones of the middle ear (ossicles).

a) Myringotomy
b) Fenestration
c) Tympanoplasty

Answer 13

c) Tympanoplasty

Question 14

The operation of cutting an opening in the bony labyrinth between the inner ear and tympanum to replace natural fenestrae that are not functional

a) Tympanoplasty
b) Fenestration
c) Myringotomy

Answer 14

b) Fenestration

Question 15

Hearing loss from noise exposure is usually due to

a) obstruction of the external canal
b) cochlear hair cell damage
c) overproduction of endolymph
d) labyrinthitis

Answer 15

b) cochlear hair cell damage

Noise exposure overworks the hair cells. The other answers don’t relate.

Question 16

Earmold tubing comes in several inside diameters. The size most often recommended by manufacturers is:

a) #16
b) #15
c) #14
d) #13

Answer 16

d) #13

Straight memorization

Question 17

If a person has UCL of 90 dB and an SRT of 45 dB, the dynamic range is

a) 90 dB
b) 45 dB
c) 135 dB
d) cannot be computed from the information given

Answer 17

b) 45 dB

Bottom to top. Do the math.

Question 18

Which of the following is part of the inner ear?

a) vestibule
b) endolymph
c) tectorial membrane
d) all of the above
e) none of the above

Answer 18

d) all of the above

You should be able to locate all the parts of the inner ear, and have a vague idea what they do.

Question 19

A person with a dynamic range of 50 dB and a TD of 100 dBHL would probably

a) have no trouble listening to a phonograph record
b) be uncomfortable with a live orchestra playing the same music
c) have difficulty with quiet conversation
d) all of the above

Answer 19

d) all of the above

Question 20

The ossicles form a link between

a) the concha and the round window
b) the tympanic membrane and the scala tympani
c) the cochlea and the middle ear
d) the tympanic membrane and the oval window

Answer 20

d) the tympanic membrane and the oval window

Question 21

Decibels

a) can be added together
b) are based on a logarithmic scale
c) all of the above
d) none of the above

Answer 21

b) are based on a logarithmic scale

Decibels are relative, and they increase on a ratio.