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Flashcards in Ears Deck (21):
1

what is mass loading?

effusion of the ear

2

what is stiffness effect?

otosclerosis that leads to stiffness of ossicles

3

what is discontinuity?

ossicular disruption

4

which frequency is most affected in presbycusis?

high frequency

5

what is peripheral audition?

from auricle to cochlea

6

what is a central audition?

from 8th nerve to brain (involving the nerve)

7

what is an acoustic neuroma?

benign mass on CN VIII
-presents with unilateral high frequency sensory neural loss

8

what frequency range can we here?

250 Hz-8000Hz

9

what is an air-bone gap?

only seen in conductive loss
difference between what the nerve is able to perceive and what they actually hear

10

what are advantages of contemporary hearing aids?

sensorineural loss
less distortion
small
programmable (tamp down intermediate noise)

11

what would you use in the case of conductive or profound unilateral sensorineural loss?

bone anchored hearing aid (BAHA)
-stimulates ipsilateral cochlea in conductive loss
-stimulates contralateral cochlea in sensory loss

12

what would you use in severe or profound sensorineural loss?

cochlear impant
-implanted directly into cochlea and stimulates the auditory nerve

13

what is the most important job of the eustachian tube?

stabilize the pressure in the middle ear

14

how does noise induced hearing loss present?

high frequency and bilateral loss

15

how does ototoxic hearing loss present?

affects hearing and/or balance (vestibular toxic)
-aminoglycosides
-lasics (diuretic)
(higher doses and time of exposure affects outcomes)

16

how does sudden hearing loss present?

sudden onset
often idiopathic
often caused by a virus that seems to have an affinity for the inner ear (may have hx of URI that resolves)

17

what is the prognosis of sudden hearing loss?

prompt use of steroids and antivirals may get some hearing back otherwise it is irreversible
-unilateral

18

how does autoimmune hearing loss present

unilateral
a/w MS, SLE, or other autoimmune process

19

where are most nosebleeds from?

anterior sites of the kiesselbach's plexus

20

what are centor criteria for acute pharyngitis?

1. sore throat
2. fever
3. anterior cervical adenopathy
4. exudates
4/4 supports abx use
3/4 supports abx use

21

anti streptolysin titer does what?

gives indication of previous strep infection

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