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Flashcards in Ears Deck (41):
1

division between external and internal ear

tympanic membrane

2

do you need a tympanic membrane to hear?

No, need it to amplify sound

3

three things that make up balance

inner ear
eyes
proprioception

4

three types of hearing loss

conductive
senorineural
mixed

5

hearing loss associated w/ age

prebycusis

6

what frequency do you lose first with prebycusis

high
mid
low

7

Medications associated with ototoxicity

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

8

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

Acoustic neuroma

9

associated with endolymphatic hydrops. Diagnosis of exclusion

Meineres Disease

10

Tx for acoustic neuroma

radiotherapy
microsurgery

11

Vertigo, hearing loss, tinnitus (first often)

Meineres Disease

12

what causes meineres Dz?

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

13

Tx for meineres Dz

low salt diet
avoid caffeine
HCTZ
diazepam

14

vascular tumor behind eardrum

glomus jugularis

15

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

Bony exostoses

16

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

prednisone burst

17

should Rinne and Weber tests be used for general screening?

No, let elderly identify limitations

18

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

tympanometry

19

most common organism causes of otitis external

S aureus
P aerguinosa
fungus

20

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

No

21

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

Acidification

22

ABX used for otitis externa

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

23

tx if you suspect fungal infection with otitis externa

clotrimazole

24

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

Necrotizing/ malignant OE

25

most common cause of necrotizing/ malignant OE

P. aergonosa osteomyelitis
immunocomprimised

26

diagnostic you need for necrotizing/ malignant OE

Tech-99

27

Tx for otitis externa- malignant/ necrotizing

surgical debridement
prolonged abx tx (fluroquinolones or betalactam + aminoglycoside)

28

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

Benign paroxysmal vertigo

29

what maneuver do you do you tx BPPV?

Epley maneuver

30

after an epley manuver how should a patient sleep?

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

how long do tubes last?

9-18 months

32

Tx for otitis media- acute?

decongestant and/or antihistamine

33

otitis media with fever, hearing loss?

Amoxicillin 500 mg PO TID x 10 days

34

secondary tx for otitis media

augmentin or cephalosporin

35

Tx for peds for otitis media 2 mo-5 years

amoxicillin 80-90 mg/kg/ day divided BID

36

tx for peds with otitis media 6-12 years

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

37

Otitis media referral indications

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

38

Emergency ENT referral for otitis media

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

39

what perceieves linear accleration?

macula

40

what percieves angular acceleration

crista

41

what manuever helps identify BPPV

Dix-Hallpike