Skin & Soft Tissue Infections Flashcards

1
Q

What are the types of infections that occur after animal bites?

A
  1. Nonpurulent wound with cellulitis, lymphangitis, or both
  2. Purulent wound without abscess
  3. Abscess
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

What organisms are associated with cat bites? 11 listed

A
  1. Pasteurella 2. Strep 3. Staph 4. Fusobacterium 5. Porphyromonas 6. Bacteroides 7. Neisseria 8. Moraxella 9. Corynebacterium 10. Enterococcus
  2. Bacillus
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

Which Pasteurella species is present in > 90% of cats’ saliva

A

P. multocida

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

Which Pasteurella species is present in 50% of dog saliva

A

P. canis

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

Shape and classification of Pasteurella species

A

Gram negative bacillus

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

First line treatment for Pasteurella

A

Amoxicillin susceptible

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

6 pathogens that can cause infection from cat bites

A
  1. Pasteurella
  2. Anaerobic bacteria-Fusobacterium
  3. Bartonella henselae
  4. Rabies virus
  5. Staph aureus
  6. Strep species
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

What are the potential pathogens from a dog bite?

A

Pasteurella and Capnocytophaga canimorsus
Staph aureus, Strep pyogenes

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

What is risk factor for capnocytophaga infection getting worse?

A

Splenectomy

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

What abx work against Capnocytophaga

A
  1. Amox/Clav
  2. Pip/Tazo
  3. PCN G
  4. Clindamycin
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

What abx is Capnocytophaga resistant to?

A

Bactrim, Vancomycin

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

Classification of Eikenella corrodens

A

Small anaerobic gram negative coccobacilli

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

Treatment of Eikenella corrodens (5 listed)

A
  1. PCN’s
  2. Fluoroquinolones
  3. Bactrim
  4. Doxycycline
  5. Extended spectrum cephalosporins (2nd, 3rd generation cephalosporins)
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

What kind of injury is associated with Eikenella corrodens and why?

A

Closed fist or clenched fist injury because Eikenella is part of normal human flora.

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

Which organism is found in the mouth of a leech?

A

Aeromonas hydrophila

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

What kind of water can Aeromonas be found in?

A

Fresh, brackish or marine water

17
Q

Name the 3 different Aeromonas species

A
  1. hydrophila-most common
  2. veronii
  3. shubertii
18
Q

List 3 different infections caused by Aeromonas

A
  1. Gastroenteritis (most common)
  2. Wound infection (after trauma/exposure to leeches)
  3. Bacteremia (after exposure to fresh, brackish or marine water)
19
Q

What is the treatment for Aeromonas?

A

Lots of variability. Need culture and susceptibility testing done for wound, stool and blood.
Always resistant to Ampicillin, Penicillin and Cefazolin

20
Q

Honeycrust lesion near the mouth

A

Streptococcal impetigo

21
Q

Streptococcal impetigo-which bacteria cause it? Where is it more common?

A

Bacteria-Strep Groups A, B, C, G
More common in warm, humid environments; especially in children

22
Q

Risk factors for skin infections? 7 listed

A
  1. Trauma to normal skin
  2. Immune deficiency
  3. Disrupted venous or lymphatic drainage
  4. Local inflammatory disorders
  5. Presence of foreign body
  6. Vascular insufficiency
  7. Obesity/poor hygeine
22
Q

Describe superficial folliculitis

A

Purulence (can be mixed with blood) where hair follicles exit skin

22
Organisms that cause superficial folliculitis? 5 listed
1. Staph aureus 2. P. aeruginosa (hot tub) 3. C. albicans (esp. in obese pt) 4. Malassezia furfur 5. Idiopathic eosinophilic pustular folliculitis in AIDS pt
22
Folliculitis under swim trunks is which organism?
Pseudomonas