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Hearing Aid Dispenser's Written Exam Questions and Correct Answers the Latest Update and Recommended Version $12.49   Add to cart

Exam (elaborations)

Hearing Aid Dispenser's Written Exam Questions and Correct Answers the Latest Update and Recommended Version

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Hearing Aid Dispenser's Written Exam Questions and Correct Answers the Latest Update and Recommended Version

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  • November 2, 2024
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  • 2024/2025
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Hearing Aid Dispenser's Written Exam
Questions and Correct Answers the Latest
Update and Recommended Version
Why do we perform audiometric tests?

✓ to determine the different characteristics of a hearing loss if one presents



A hearing loss is characterized by what three descriptors?

✓ 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

✓ 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?

✓ - 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?

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✓ Yes (and surgically)



Sensorineural hearing loss

✓ 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?

✓ - disease

✓ - birth injury

✓ - ototoxic drugs

✓ - genetic syndromes

✓ - noise exposure

✓ - viruses

✓ - head trauma

✓ - aging

✓ - tumors



Can sensorineural hearing loss be medically or surgically corrected?

✓ No



Mixed hearing loss

✓ 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*




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Degree of hearing loss

✓ 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?

✓ 1. extent of hearing loss at each frequency

✓ 2. overall picture of hearing that is created



What are some configurations of hearing loss?

✓ - 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

✓ - common with people that have had a history of noise exposure

✓ - noise notch between 3000 and 6000 Hz



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