Otitis Media tutorial Flashcards

1
Q

aetiology of the inflammation in otitis externa?

A

bacterial
fungal
exczematous

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2
Q

most common pathogenic bacteria in otitis externa?

A

pseudomonas
proteus
staph aureus

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3
Q

Tx of bacterial otitis externa?

A

drops containing steroid and:
neomycin
gentamycin

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4
Q

most common pathogenic fungi in otitis externa?

A

aspergillus niger

candida albicans

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5
Q

Tx of fungal otitis media?

A

clotrimazole

nystatin

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6
Q

Tx of eczematous otitis externa?

A

steroid without antibiotic

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7
Q

how to generally care for otitis externa without medication?

A

keep water away
don’t put anything in the ear
keep hearing aids out

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8
Q

how to treat cellulitis in otitis externa?

A

systemic + topical Abs

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9
Q

name some preparatons used as wax solvents?

A

sodium bicarbonate
olive oil
almond oil

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10
Q

when would a wick be helpful?

A

if the canal skin is oedematous

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11
Q

when could drops cause dizziness?

A

drops are not close to body temperature

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12
Q

describe the centor criteria

A

history of fever
tonsillar exudates
tender anterior cervical lymphadenopathy
no cough

> 3 = antibiotics

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13
Q

difference between glandular fever and tonsillitis

A
GF:
lasts longer
get hepatosplenomegaly
get jaundice
LNs are bigger and multiple
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14
Q

what bacteria causes epiglottitis?

A

haemophilus influenzae type B

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15
Q

treatment of mild epiglottitis?

A

supportive
Abs
nebulisers eg adrenaline

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16
Q

treatment of severe epiglottitis?

A

steroids
antibiotics
intubation
tracheostomy

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17
Q

drugs that can cause nosebleeds?

A

anticoagulants

blood thinners eg warfarin

18
Q

what blood disorders can cause epistaxis?

A

haemophilia
leukaemia
thrombocytopaenia
clotting abnormalities

19
Q

define glue ear

A

otitis media with effusion

bilateral fluid in the middle ear causing hearing loss that lasts for 3 months

20
Q

Tx of glue ear?

A

nothing for 3 months

after consider hearing aids, grommet or adenoidectomy

21
Q

why is an adenoidectomy beneficial in otitis media?

A

the adenoids (nose tonsils) can block the opening to the eustachian tube further exacerbating glue ear

22
Q

difference in symptoms of acute otitis media and glue ear?

A

glue = will not have otalgia, otorrhea, or signs of systemic infection, but may experience mild-to-moderate hearing impairment

23
Q

cause of fluid in the middle ear?

A

eustachian tube dysfunction

24
Q

common causes of glue ear?

A

URTI

acute otitis media

25
how is diagnosis of glue ear confirmed?
tympanometry
26
how can acute otitis media become glue ear?
if any discharge is left behind in the middle ear
27
how can glue ear become acute otitis media?
if the fluid in the middle ear becomes infected
28
why are children more likely to get ear infections?
have shorter eustachian tubes that are more likely to be closed
29
risk factors for glue ear
``` 2-6 yrs old boy poor income background bottle fed pre-term downs syndrome cleft palate ```
30
how does the middle ear normally control its pressure?
eustachian tube opens during swallowing to bring a certain amount of gas into the middle ear cleft
31
what does reduced ventilation of the middle ear cause?
reduction in pressure and effusion | effusion will become viscous if prolonged -> glue ear
32
why are ear infections common in children with facial abnormalities?
usually have short eustachian tubes and small ear canals
33
where is the middle ear in relation to the cochlea?
lateral to it
34
you get fluid discharge in AOM: T or F
Fish, only really in OME
35
a bulging TM is found in what ear condition?
AOM
36
risk factors for OME?
``` recurrent URTI recurrent AOM premature craniofacial abnormality immunodeficiency smoking in household allergy day care bottle feeding ```
37
symptoms of OME in a child?
deaf poor school performance speech delay behaviour problems
38
how is OME diagnosed?
``` Hx otoscopy tuning fork test audiometry tympanometry ```
39
what does the TM look like in OME?
retracted less mobile colour change can see bubbles
40
what ear condition presents with bubbles on the TM?
OME
41
what does tympanometry look like when fluid is in it and why?
FLAT, fluid doesnt move
42
Tx of OME?
wait for 3 months grommet do adenoidectomy if recurrent