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26 Cards in this Set
- Front
- Back
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What's the prevalence of hearing lossin america?
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1/6
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What are the two kinds of hearing tested in audiology testing?
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Bone conduction
Air conduction |
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What are the symbols for the right ear in audiometric tesiting?
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Color: red
Bone conduction: < Air: 0 |
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What are the symbols for the L ear in audiometric testing?
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Color: blue
Bone conduction: > Air: X |
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What are the different thresholds for hearing loss?
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0-25: normal
25-40: mild 40-55: moderate 55-70: moderately severe 70-90: severe 90+: profound |
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What does an audiogram look like for conductive hearing loss?
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There's an air-bone gap!
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What does an audiogram look like for sensorineural hearing loss?
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It's when there isn't a gap between the bone and the air!
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What is indicative of noise-induced hearing loss?
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A notch at 4KHZ
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What happens in a mixed conduction loss? What does the audiogram look like?
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Problems with both the conduction and the neural things
Overall decrease PLUS an air-bone gap |
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In general, what frequencies are usually lost more in conductive hearing loss?
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Low frequencies
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In general, what frequencies are lost more in sensorineural hearing loss?
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High frequencies
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How do you do auditory testing in kids?
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Soundfield testing: you get information about the best ear
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If a kid fails the soundfield test, what do you do?
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Get them more testing!
Do a brainstem auditory evoked response. It measures brain activity in response to sound and provides an estimat of how well hearing is occuring in each ear. |
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Other than soundfield and brainstem auditory evoked response, what is another test that you can do to test hearing in kids?
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Otoacoustic emission test: cochlea sends a vibration back through the middle ear and this can be measured
If it's present, you've at least got some sort of hearing threshold |
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Other than an audiogram, what are other tests that you can do for hearing loss?
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Middle ear testing
Speech testing |
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What problems with speech occur during conductive loss?
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You have great discrimination when the sound is loud enough
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What problems with understanding speech are had during sensorineural hearing loss?
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You have reduced speech discrimination even when the sounds are loud enough
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What is a study that you can do to test out the middle ear?
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A tympanogram!
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What does a normal tympanogram look like?
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What does a tympanogram look like if there's a hole/fluid in the ear?
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What will a tympanogram look like if the eustacian tube is dysfunctional?
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What does a tympanogram look like if there are problems with the tensor tympani/stapedius?
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What are some causes of conductive hearing loss?
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Outer ear:
-Excessive cerumen, otitis external, congenital atresia Middle ear: -Otitis media -Eardrum perforation/retraction -Otosclerois -Ossicular chain discontinuity |
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What does a tympanogram look like in sensorineural hearing loss?
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NORMAL!
There isn't any problem with the drum! |
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What are some of the congenital causes of sensorineural hering loss?
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Problems with cochlea development
Genetic/familial progressive causes Viral (CMV) |
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What are a few of the causes of sensorineural hearing loss?
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Meningitis
Ototoxicity Noise-induced Presbycusis Autoimmune Meniere's |
