mnsr - 28 hearing impairment

Question 1

the more you go down the y axis

Answer 1

the more your loss is ruined and the louder the note it’ll get

Question 2

hearing loss and hearing aid are measured by

Answer 2

dBHL and we use audiometer to give an audiogram at fixed frequency and increasing intensity

Question 3

How to narrow the cause of the hearing impairment

Answer 3

hearing loss can be from conductive pathway or the cochlea

Question 4

What’s air conduction

Answer 4

The sound detected by the usual auditory route, we can’t know the problem that lies within it.

Question 5

Bone conduction

Answer 5

sound is conducted directly into your cochlea through bone of the skull.

Question 6

Large production of the sound is at

Answer 6

larynx and transmitted into the cochlea by the bone conduction. We sound different bc we’re missing the bone conduction portion

Question 7

bone conduction or air conduction can be used for neural hearing loss

Answer 7

bone conduction

Question 8

The two types of hearing loss

Answer 8

1- conductive (physical damage in outer or middle ear) 2- sensory / neural permanent damage in hair cells, nerves or inner ear

Question 9

Conductive hearing loss

Answer 9

normal bone conduction but impaired air conduction from ear infections, earwax , hole in the eardrum or fluid in the middle ear

Question 10

neural hearing loss

Answer 10

impaired air and bone conduction. caused by damage in the hair cells or auditory nerve or neurodegenration

Question 11

Neural hearing loss can be also caused by

Answer 11

1- noise exposure - notch defect in 9 year olds
2- presbycus - sensitive to high frequency due to age

Question 12

hearing aids

Answer 12

are only required when the audiogram shows more than 55 dBHL loss. The threshold of the pain is similar to those with normal hearing ( 120-130 dB HL) which is why we need to design them carefully. Digital electronic enables frequency response of aids to be tailored for someone.