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Old DOOS > Ears > Flashcards

Ears Flashcards

1
Q

division between external and internal ear

A

tympanic membrane

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2
Q

do you need a tympanic membrane to hear?

A

No, need it to amplify sound

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3
Q

three things that make up balance

A

inner ear
eyes
proprioception

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4
Q

three types of hearing loss

A

conductive
senorineural
mixed

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5
Q

hearing loss associated w/ age

A

prebycusis

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6
Q

what frequency do you lose first with prebycusis

A

high
mid
low

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7
Q

Medications associated with ototoxicity

A 
gentamycin
furosemid
ethacrynic acid
cisplatin
quinidine
ASA (6-8 grams)
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8
Q

can’t hear out of one ear and is often with disequilibrium. Schwann cells grows within finite space and progresses nerve. Can have mid-facial and corneal hypesthesia, occipital HA, ataxia

A

Acoustic neuroma

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9
Q

associated with endolymphatic hydrops. Diagnosis of exclusion

A

Meineres Disease

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10
Q

Tx for acoustic neuroma

A

radiotherapy

microsurgery

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11
Q

Vertigo, hearing loss, tinnitus (first often)

A

Meineres Disease

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12
Q

what causes meineres Dz?

A

malfunction of endolymph volume regulation in scala media
Disruption of basilar membrane movement
Mixing of endolymph and perilymph

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13
Q

Tx for meineres Dz

A

low salt diet
avoid caffeine
HCTZ
diazepam

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14
Q

vascular tumor behind eardrum

A

glomus jugularis

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15
Q

common in swimmers (cold water), not a problem until it holds onto cerumen.

A

Bony exostoses

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16
Q

if someone has acute viral hearing loss what do you do?

A

prednisone burst

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17
Q

should Rinne and Weber tests be used for general screening?

A

No, let elderly identify limitations

18
Q

watch the tympanic membrane mobility. Screening test for middle ear dysfunction.

A

tympanometry

19
Q

most common organism causes of otitis external

A

S aureus
P aerguinosa
fungus

20
Q

should you flush the ear is you can’t visualize the TM?

A

No

21
Q

what may be the only thing you need to tx Otitis externa?

A

Acidification

22
Q

ABX used for otitis externa

A

ofloxacin solution (can be used w/ perf)
ciprofloxacin
ciprodex (can be used w/ perf)

23
Q

tx if you suspect fungal infection with otitis externa

A

clotrimazole

24
Q

Life-threatening extension to mastoid or temporal bone of otitis external.

A

Necrotizing/ malignant OE

25
Q

most common cause of necrotizing/ malignant OE

A

P. aergonosa osteomyelitis

immunocomprimised

26
Q

diagnostic you need for necrotizing/ malignant OE

A

Tech-99

27
Q

Tx for otitis externa- malignant/ necrotizing

A

surgical debridement

prolonged abx tx (fluroquinolones or betalactam + aminoglycoside)

28
Q

Patient has vertigo, they don’t dare move their head because it triggers it. Due to stones that form in the semicircular canals.

A

Benign paroxysmal vertigo

29
Q

what maneuver do you do you tx BPPV?

A

Epley maneuver

30
Q

after an epley manuver how should a patient sleep?

A

With their head elevated (in a recliner)

when wake up look right, middle then left each for 10 seconds (home vestibular therapy)- do every morning for 2 weeks

31
Q

how long do tubes last?

A

9-18 months

32
Q

Tx for otitis media- acute?

A

decongestant and/or antihistamine

33
Q

otitis media with fever, hearing loss?

A

Amoxicillin 500 mg PO TID x 10 days

34
Q

secondary tx for otitis media

A

augmentin or cephalosporin

35
Q

Tx for peds for otitis media 2 mo-5 years

A

amoxicillin 80-90 mg/kg/ day divided BID

36
Q

tx for peds with otitis media 6-12 years

A

amoixicillin 80-90 mg/kg/day divided BID x 5-10 days

37
Q

Otitis media referral indications

A

TM perf
recurrent AO
chornic serous otitis media
recurrent OM, chronic OM

38
Q

Emergency ENT referral for otitis media

A

persistent fever, HA, vertigo, facial nerve paralysis/ cranial neuropathy

39
Q

what perceieves linear accleration?

A

macula

40
Q

what percieves angular acceleration

A

crista

41
Q

what manuever helps identify BPPV

A

Dix-Hallpike

Old DOOS (21 decks)

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