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8th > Chapter 151 - Cellulitis and Erysipelas > Flashcards

Chapter 151 - Cellulitis and Erysipelas Flashcards

1
Q

Unilateral LE involvement is typical and systemic symptoms are usual.
True or False

A

False, usually absent

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2
Q

Sharply demarcated, bright red, edematous plaques resulting from superficial lymphatic infiltration

A

Erysipelas

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3
Q

Localized pustules or abscesses associated with cellulitis

A

Purulent cellulitis

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4
Q

Classic signs of inflammation (4)

A

Rubor
Tumor
Calor
Dolor

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5
Q

More than ___% of hospitalizations in US are due to cellulitis

A

10%

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6
Q

Spreading, ill defined erythema, edema, often warm and painful

A

Classic cellulitis

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7
Q

Presence of the ff (3) warrants concern for necrotizing soft tissue infection

A
  1. Crepitus
  2. Anesthesia
  3. Pain disproportionate to clinical finding
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8
Q

Frequent complication of cellulitis that increases risk of recurrence

A

Lymphedema

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9
Q

Fever is more common in erysipelas than classic cellulitis.

True or False

A

True

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10
Q

Important clues to diagnosis of orbital cellulitis (4)

A

Proptosis
Bulbar conjunctival edema
Ophthalmoplegia
Decreased visual acuity

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11
Q

Risk factors for bilateral cellulits (2)

A

Deficient cellular immunity

  1. Solid organ transplant recipients
  2. HIV
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12
Q

Portal of entry is identified in ___%

A

62

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13
Q

MC etiology

A

Toe web infections

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14
Q

Etiology of cellulitis from aquatic trauma (4)

A

Aeromonas spp
Erysipelothrix rhusiopathiae
Mycobacterium marinum
Vibrio vulnificus

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15
Q

At greater risk for polymicrobial or atypical infections (3)

A

Surgical site infections
Pressure or diabetic ulcers
Cellular immunodeficiency

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16
Q

Systemic risk factors for primary and recurrent cellulitis (4)

A

Age
Obesity
Systemic disease
Summer

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17
Q

Local risk factors for primary cellulitis (2)

A

Lymphedema 70%

Disrupted skin barrier 24%

18
Q

The 2014 update to Infectious Diseases Society of America guidelines recommends routinely culturing blood or cutaneous aspirates or swabs.
True or False

A

False, does not

19
Q

ALT risk prediction for cellulitis (4)

A

Asymmetry 3
WBC >10,000 cells/ul 1
Tachycardia > 90bpm 1
70 y/o and older 2

20
Q

ALT -70 risk score of ___ has 83.3% likelihood of pseudocellulitis

A

0-2

21
Q

ALT -70 risk score of ___ has 83.3% likelihood of true cellulitis

A

> /= 5

22
Q

Skin surface temp gradient greater than __ on therma imaging has sensitivity if 96.6% for diagnosis of cellulitis

A

0.47 C

23
Q

The MC of pseudo cellulitis

A

Stasis dermatitis

24
Q

Genetic testing of ___ expression was 34 fold higher among cases with cellulitis

A

HLADQA1

25
Q

Recurrence occurs in more than ___% of patients

A

10

26
Q

1st line Tx for mild nonpurulent cellulitis

A

Cephalexin
Dicloxacillin
Pen V

27
Q

1st line Tx for moderate nonpurulent cellulitis

A

Cefazolin
Ceftriaxone
Pen G

28
Q

1st line Tx for severe nonpurulent cellulitis

A

Vancomycin

Piperacillin-Tazobactam

29
Q

1st line Tx for mild purulent cellulitis

A 
MSSA
1. Cephalexin
2. Dicloxacillin
MRSA
1. Clindamycin
2. Tetracycline
3. TMP SMX
30
Q

1st line for moderate purulent cellulitis

A 
MSSA
Oxacillin
Nafcillin
Cefazolin
MRSA
Clindamycin
Vancomycin
31
Q

Criteria for SIRS (4)

A

36 < T> 38 C
HR > 90bpm
RR > 20
4,000 < WBC > 12,000

32
Q

In general, recommended duration of Tx for uncomplicated; immunosuppressed

A

5- 10 days

7-14 days

33
Q

In IDSA guidelines, uncomplicated cases should be treated for; if signs of infection persist then should

A

5 days

Extend

34
Q

Significant involvement of lymphatics or superficial edema

A

Peau d’orange appearance

35
Q

MC site of cellulitis

A

Lower extremity

36
Q

MC site of erysipelas

A

Leg (76-90%)

37
Q

Small areas of spared intervening skin in cellulitis are termed as

A

Skip areas

38
Q

Inconsistent complication of cellulitis

A

Fever

39
Q

Most common etiology of cellulitis (2)

A

GABHS

S. Aureus

40
Q

Increase in both cellulitis and pseudocellulitis

A

ESR

CRP

41
Q

Reassessment at ___ is impt to assess response to therapy

A

24-72hrs

8th (28 decks)

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