Hearing Aid Dispenser's Written Exam
Questions and Answers (100% Correct
Answers) Already Graded A+
Why do we perform audiometric tests? [ Ans: ] to
determine the different characteristics of a hearing loss if
one presents
A hearing loss is characterized by what three descriptors?
[ Ans: ] 1. Type of hearing loss (conductive, sensorineural,
mixed)
2. Degree of hearing loss (mild, moderate, etc)
3. Configuration of hearing loss or what the hearing loss
looks like (ex: flat, rising, sloping, etc)
Conductive hearing loss [ Ans: ] a loss that occurs when
sound is NOT transmitted efficiently through the ear
canal, eardrum and ossicles of the middle ear.
What can cause a conductive hearing loss? [ Ans: ] -
middle or outer ear infection
- perforated tympanic membrane
- cerumen impaction
- benign tumors
,- absence/malformation of the outer ear, ear canal, or
middle ear
Can conductive hearing losses be medically treated? [ Ans:
] Yes (and surgically)
Sensorineural hearing loss [ Ans: ] occurs when there is
damage to the inner ear (cochlea) or to the nerve pathways
from the inner ear to the brain (retrocochlear) permanent
loss
What can cause a sensorineural hearing loss? [ Ans: ] -
disease
- birth injury
- ototoxic drugs
- genetic syndromes
- noise exposure
- viruses
- head trauma
- aging
- tumors
Can sensorineural hearing loss be medically or surgically
corrected? [ Ans: ] No
,Mixed hearing loss [ Ans: ] occurs when there is damage to
the outer and inner ear (cochlea) or auditory nerve
air-bone gap with abnormal air and bone conduction
thresholds
Degree of hearing loss [ Ans: ] Normal: -10-25
Mild: 26-40
Moderate: 41-55
Moderately-severe: 56-70
Severe: 71-90
Profound: 91 +
pediatric normal: -10-15, slight: 16-25
The configuration (or shape) of the hearing loss refers to
what? [ Ans: ] 1. extent of hearing loss at each frequency
2. overall picture of hearing that is created
What are some configurations of hearing loss? [ Ans: ] -
flat: generally varies within 10-15 dB at all frequencies
- gently sloping: a gradual reduction from lower to higher
frequencies
, - rising or reverse slope: greater hearing loss in the low
frequencies, better hearing in the high frequencies
- precipitous slope: (ski slope or high frequency) better
hearing in the low frequency range to a severe drop in the
high frequency range
Noise-notch hearing loss [ Ans: ] - common with people
that have had a history of noise exposure
- noise notch between 3000 and 6000 Hz
Unilateral hearing loss [ Ans: ] loss of hearing in one ear
only
Bilateral hearing loss [ Ans: ] loss of hearing in both ears
Fluctuating hearing loss [ Ans: ] hearing loss that is always
changing over time
Stable hearing loss [ Ans: ] no change in hearing over time
Sudden hearing loss [ Ans: ] loss of hearing that occurs
quickly
Progressive hearing loss [ Ans: ] loss of hearing that
presents slowly over time
Symmetrical hearing loss [ Ans: ] the characteristics of
degree and configuration of the loss are the same in both
ears
Questions and Answers (100% Correct
Answers) Already Graded A+
Why do we perform audiometric tests? [ Ans: ] to
determine the different characteristics of a hearing loss if
one presents
A hearing loss is characterized by what three descriptors?
[ Ans: ] 1. Type of hearing loss (conductive, sensorineural,
mixed)
2. Degree of hearing loss (mild, moderate, etc)
3. Configuration of hearing loss or what the hearing loss
looks like (ex: flat, rising, sloping, etc)
Conductive hearing loss [ Ans: ] a loss that occurs when
sound is NOT transmitted efficiently through the ear
canal, eardrum and ossicles of the middle ear.
What can cause a conductive hearing loss? [ Ans: ] -
middle or outer ear infection
- perforated tympanic membrane
- cerumen impaction
- benign tumors
,- absence/malformation of the outer ear, ear canal, or
middle ear
Can conductive hearing losses be medically treated? [ Ans:
] Yes (and surgically)
Sensorineural hearing loss [ Ans: ] occurs when there is
damage to the inner ear (cochlea) or to the nerve pathways
from the inner ear to the brain (retrocochlear) permanent
loss
What can cause a sensorineural hearing loss? [ Ans: ] -
disease
- birth injury
- ototoxic drugs
- genetic syndromes
- noise exposure
- viruses
- head trauma
- aging
- tumors
Can sensorineural hearing loss be medically or surgically
corrected? [ Ans: ] No
,Mixed hearing loss [ Ans: ] occurs when there is damage to
the outer and inner ear (cochlea) or auditory nerve
air-bone gap with abnormal air and bone conduction
thresholds
Degree of hearing loss [ Ans: ] Normal: -10-25
Mild: 26-40
Moderate: 41-55
Moderately-severe: 56-70
Severe: 71-90
Profound: 91 +
pediatric normal: -10-15, slight: 16-25
The configuration (or shape) of the hearing loss refers to
what? [ Ans: ] 1. extent of hearing loss at each frequency
2. overall picture of hearing that is created
What are some configurations of hearing loss? [ Ans: ] -
flat: generally varies within 10-15 dB at all frequencies
- gently sloping: a gradual reduction from lower to higher
frequencies
, - rising or reverse slope: greater hearing loss in the low
frequencies, better hearing in the high frequencies
- precipitous slope: (ski slope or high frequency) better
hearing in the low frequency range to a severe drop in the
high frequency range
Noise-notch hearing loss [ Ans: ] - common with people
that have had a history of noise exposure
- noise notch between 3000 and 6000 Hz
Unilateral hearing loss [ Ans: ] loss of hearing in one ear
only
Bilateral hearing loss [ Ans: ] loss of hearing in both ears
Fluctuating hearing loss [ Ans: ] hearing loss that is always
changing over time
Stable hearing loss [ Ans: ] no change in hearing over time
Sudden hearing loss [ Ans: ] loss of hearing that occurs
quickly
Progressive hearing loss [ Ans: ] loss of hearing that
presents slowly over time
Symmetrical hearing loss [ Ans: ] the characteristics of
degree and configuration of the loss are the same in both
ears
