Bacterial and Viral Skin Infections Flashcards Preview

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Flashcards in Bacterial and Viral Skin Infections Deck (40)
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1

May follow impetigo infection

post streptococcal glomerulonephritis

2

Caused by neisseria meningitidis w/highest incidence between 6mo-3yrs. Most rapidly lethal form of septic shock

meningococcemia

3

Presents with high fever, tachycardia, hypotension, pink macules/papules that become hemorrhagic. Pus from nodular lesion shows gram (-) diplococci

meningococcemia

4

Treatment for meningococcemia

Cefotaxine (Claforin) or Ceftriaxone (Rocephin)

5

Often caused by s. aureus and strep viridans. Presents w/fever, chills, anorexia. PE includes heart murmur, arterial emboli, splenomegaly

bacterial endocarditis

6

Nontender, hemorrhagic maculopapular lesions on palms and soles associated with bacterial endocarditis

Janeway lesions

7

Painful, red nodules on fingertips associated with bacterial endocarditis

Osler's node

8

Treatment for non-MRSA bacterial endocarditis

PCN-G, nafcillin, gentamycin

9

Treatment for MRSA bacterial endocarditis

vanco or zyvox

10

Common May-Sept. Caused by Rickettsia rickettsii spirochete. Presents with fever, chills, weakness, HA, photophobia

Rocky Mountain Spotted Fever

11

Characteristic spread of rash associated with RMSF

begins on extremities and spreads centrally

12

Treatment for RMSF

doxy or chloramphenical

13

multi-stage, multi-system bacterial infection caused by the spirochete Borrelia burgdorferi from a tick bite

lyme disease

14

General progression of lyme's disease symptoms

flu-like symptoms days to weeks after the bite. After several months, arthritis type symptoms

15

Treatment for early stage Lyme disease

doxy 14-21 days for ages 8+. If pregnant/breast feeding/< 8yrs, amoxicillin

16

Acute, spreading infections of dermal and subcutaneous tissues thru a skin portal caused by S. aureus or Group A strep

Cellulitis

17

What pathogen is suggested by cellulitis characterized by violaceous color and bullae?

strep. pneumoniae

18

Margins are not palpable. Characterized by warmth, erythema, edema, tenderness

cellulitis

19

Treatment for mild case of cellulitis

bactrim, clinda, doxy

20

Treatment for complicated case of cellulitis

hospitalization and IV antibiotics (Ancef, Rocephin), Ampicillin-Sulbactam, Zyvox)

21

begins as a small erythematous patch that progresses to a fiery-red, indurated, tense, and shiny plaque. Known as “St Anthony’s fire”

Erysipelas

22

Classic lesion of erysipelas that differentiates it from cellulitis

raised sharply demarcated margins

23

Treatment for human bites

Augmentin, Moxifloxin, or clinda. tetanus shot

24

Why is risk of infection higher with cat bites?

more penetrating wounds because of sharp teeth

25

Treatment for dog and cat bites

Augmentin, erythromycin, Bactrim

26

progressive, rapidly spreading, inflammatory infection located in the deep fascia, with secondary necrosis of the subcutaneous tissues

necrotizing fasciitis (hemolytic strep gangrene)

27

Often present in the history of necrotizing fasciitis

trauma or recent surgery to involved area

28

Most important signs are tissue necrosis, putrid discharge, bullae, severe pain, gas production, rapid burrowing through fascial planes, and lack of classical tissue inflammatory signs

necrotizing fasciitis

29

Treatment for necrotizing fasciitis

aggressive abx, surgical consult for debridement, ID and hyperbaric specialist

30

Chronic, suppurative disease of apocrine gland-bearing skin.
Onset from puberty to climacteric. Common in axilla and anogenital region

hidradenitis suppurativa