External Ear Infections - Blake Flashcards

1
Q

How far distally and proximally can otitis media extend?

A

Distally to the pinna and proximally to the tympanic membrane

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

What is malignant necrotizing otitis externa?

A

rare complication where it invades the surrounding soft tissue and bone

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

What are the predisposing factors to chronic otitis media that lasts three months or longer?

A

allergies, chronic derm conditions, or badly treated acute otitis externa

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

What are the two most common bacterial causes of otitis externa?

A

S. aureus and Pseudomonas aeruginosa

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

What percent of cases are polymicrobial?

A

one third

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

(Viral/fungal) otitis externa happens in pts that were previously treated with abx

A

fungal

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

What is the mechanism that the common risk factors such as swimming and cleaning your ears uses to give you otitis externa?

A

loss of cerumin barrier and disruption of the epithelium leading to inoculation with bacteria and increase in canal pH

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

T/F: don’t use Q tips

A

DO YOU REALLY NEED THIS ONE COLT?

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

When do you use acetic acid drops for the ear?

A

after water exposure

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

What symptom best correlates with the severity of the ear infection?

A

pain

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

Fevers beyond 101F suggest what?

A

extension beyond the ear canal

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

T/F: acute otitis externa is a form of cellulitis

A

true

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

What are the two most common fungal causes of otitis externa?

A

Aspergillus and candida

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

T/F: you may give topical antimicrobials without having to give topical corticosteroids alongside them

A

true

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

which causes symptom relief faster: topical antimicrobials or oral antibiotics?

A

topical antimicrobials

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

What is the first line therapy if the TM is intact?

A

neomycin/polymyxin B/hydrocortisone preparation

17
Q

What should be used for a middle ear infection or if the TM is not intact?

A

Cipro and dexamethasone

18
Q

What is firstline pain management for otitis externa?

A

NSAIDS

19
Q

How soon do pts normally get symptom relief?

A

within 24 hours, definitely by 48-72

20
Q

How long do you prescribe topical abx?

A

10 days

21
Q

What is the preferred mix when prescribing acetic acid drops?

A

give it with hydrocortisone

22
Q

What are the cardinal symptoms of otitis externa?

A

ear pain, itching, or fullness WITH signs of ear canal inflammation

23
Q

T/F: otitis externa can present as jaw pain or hearing loss

A

true

24
Q

What is this?

chronic otorrhea, blown TM

A

chronic suppurative otitis media

25
Q

What is this?
High fever, granulation tissue or necrotic tissue in canal, potential for cranial nerve involvement, seen in pts with DM, elevated ESR

A

malignant otitis externa; MEDICAL EMERGENCY, IV ABX

26
Q

What is this?

TM inflammation, potential vesicles, severe pain, NO CANAL EDEMA

A

myringitis

27
Q

What is this?

baaaaad itching, thick material in canal, less edema

A

otomycosis

28
Q

What is the secondary disease from acute otitis MEDIA or viral infection?

A

myringitis

29
Q

T/F: otomycosis can be polymicrobial with bacteria

A

true

30
Q

What is this?

Herpetic ulcers in canal, facial numbness, sever pain, loss of taste

A

Ramsay Hunt syndrome

31
Q

How do you treat Ramsay Hunt syndrome?

A

antivirals and systemic corticosteroids

32
Q

What is this?

Normal ear exam but pain nonetheless

A

referred pain

33
Q

What is this?

itching rash on hairline, face, and scalp

A

Seborrhea

34
Q

What is the Tx for seborrhea?

A

lubricating or moisturizing external canal

35
Q

What is this?

Severe itching, maculopapular or erythematous rash on conchal bowl and canal, streak on pinna, vesicels

A

hypersensitization to otic meds