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Flashcards in Ears Deck (21)
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1
Q

what is mass loading?

A

effusion of the ear

2
Q

what is stiffness effect?

A

otosclerosis that leads to stiffness of ossicles

3
Q

what is discontinuity?

A

ossicular disruption

4
Q

which frequency is most affected in presbycusis?

A

high frequency

5
Q

what is peripheral audition?

A

from auricle to cochlea

6
Q

what is a central audition?

A

from 8th nerve to brain (involving the nerve)

7
Q

what is an acoustic neuroma?

A

benign mass on CN VIII

-presents with unilateral high frequency sensory neural loss

8
Q

what frequency range can we here?

A

250 Hz-8000Hz

9
Q

what is an air-bone gap?

A

only seen in conductive loss

difference between what the nerve is able to perceive and what they actually hear

10
Q

what are advantages of contemporary hearing aids?

A

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

11
Q

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

A

bone anchored hearing aid (BAHA)

  • stimulates ipsilateral cochlea in conductive loss
  • stimulates contralateral cochlea in sensory loss
12
Q

what would you use in severe or profound sensorineural loss?

A

cochlear impant

-implanted directly into cochlea and stimulates the auditory nerve

13
Q

what is the most important job of the eustachian tube?

A

stabilize the pressure in the middle ear

14
Q

how does noise induced hearing loss present?

A

high frequency and bilateral loss

15
Q

how does ototoxic hearing loss present?

A

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

16
Q

how does sudden hearing loss present?

A

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
Q

what is the prognosis of sudden hearing loss?

A

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

18
Q

how does autoimmune hearing loss present

A

unilateral

a/w MS, SLE, or other autoimmune process

19
Q

where are most nosebleeds from?

A

anterior sites of the kiesselbach’s plexus

20
Q

what are centor criteria for acute pharyngitis?

A
  1. sore throat
  2. fever
  3. anterior cervical adenopathy
  4. exudates
    4/4 supports abx use
    3/4 supports abx use
21
Q

anti streptolysin titer does what?

A

gives indication of previous strep infection

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