Hearing Impairment

Question 1

Name the 2 ways to assess hearing.

Answer 1

Clinical (not formal)

Audiometric (obective)

Question 2

Voice test and tuning fork tests are examples of _________ assessment of hearing.

Answer 2

clinical.

Question 3

How is hearing tested objectively?

Answer 3

Using pure tone audiometry.

Question 4

Describe the clinical voice test.

Answer 4

stand 2 feet away
-whisper
-conversational voice
-loud voice
If they hear the whisper then we can presume their pure tone threshold is reasonable.

Question 5

in clinic, how can we effectively mask one ear?

Answer 5

Tragal rubbing

Question 6

Most of _____ is within 0.5-4 Hz.

Answer 6

speech.

Question 7

0-20 dBHL = ___________ hearing.

Answer 7

normal.

Question 8

What would be the quitest sound (dBHL) a person with;

mild hearing loss would hear?

Answer 8

20-40 dBHL

Question 9

What would be the quitest sound (dBHL) a person with;

moderate hearing loss would hear?

Answer 9

40-70dBHL

Question 10

What would be the quitest sound (dBHL) a person with;

severe hearing loss would hear?

Answer 10

70-90 dBHL

Question 11

What would be the quitest sound (dBHL) a person with;

profound hearing loss would hear?

Answer 11

90+ dBHL

Question 12

Why do we do pure-tone audiometry?

Answer 12

• To determine thresholds across frequency for hearing aid prescription
• Diagnosis of conductive or sensorineural hearing impairment

Question 13

What is the criteria to have a “Hearing Impairment”?

Answer 13

Mean pure-tone threshold (0.5, 1, 2 & 4 kHz) greater than or equal to 25 dBHL.

Question 14

If the air-bone gap is not greater than 10 dB, what sort of hearing impairment is this?

Answer 14

Sensorineural

Question 15

If the air-bone gap is greater than 10dB, what sort of hearing impairment is this?

Answer 15

Conductive or mixed

Question 16

Sensorineural hearing loss is abnormality in…

Answer 16

• inner ear
• auditory nerve
• brain

Question 17

Conductive hearing loss is abnormality in….

Answer 17

• external ear
• tympanic membrane
• middle ear

Question 18

In what hearing loss does the patient have near normal bone conduction?

Answer 18

Conductive hearing loss.

Question 19

How is a sensorineural impairment managed?

Answer 19

• Hearing Aid ( if problem w/ nerve HA won’t fix it )

- Cochlear Implant

Question 20

How is conductive impairment managed?

Answer 20

• Reconstructive middle ear surgery

- Hearing aids

Question 21

In what impairment is there more benefit with a hearing aid and why?

Answer 21

Conductive because all the nerves are working fine :)