Infections of the skin, muscles and soft tissues Flashcards

1
Q

Dermal anatomy and the risk of specific infections

A
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2
Q

Infections associated with vesicles

A
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3
Q

difference between SSSS and TEN

A

cleavage plane:

SSSS- stratum corneum
TEN - stratum germinativum

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4
Q

infections associated with bullae

A
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5
Q

Infections associated with crust

A
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6
Q

Etiologies of folliculitis

A
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7
Q

Infections associated with
popular and nodular lesions

A
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8
Q

Infections associated with
ulcerations

A
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9
Q

lesion in secondary vs tertiary syphilis

A

Secondary syphilis - flat papulosquamous lesions

Tertiary syphilis - large nodules or gummas

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10
Q

due to tissue hypoxemia secondary to pressure-induced vascular insufficiency and may become secondarily infected with components of skin GI flora

A

Decubitus ulcers

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11
Q

etiologic agent of erysipelas

A

S. pyogenes

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12
Q

Distinctive feature of erysipelas

A

well-defined indurated margins, particularly along the nasolabial fold, rapid progression and intense pain

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13
Q

Treatment of erysipelas

A

Penicilllin

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14
Q

an acute inflammatory condition of the skin characterized by localized pain, erythema, swelling and heat

A

Cellulitis

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15
Q

Purulent cellulitis

A

Infections caused by MRSA /MSSA

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16
Q

Non purulent cellulitis

A

Infections caused by S. pyogenes
-more rapidly spreading, diffuse process and is frequently associated with lymphangitis and fever

17
Q

cellulitis that occurs primarily in elderly patients and those with DM or peripheral vascular disease

A

Streptococcus agalactiae cellulitis

18
Q

cellulitis that causes periorbital cellulitis in children in association with sinusitis, otitis media, or epiglottis

A

Haemophilus influenza

19
Q

Treatment of choice for animal or human bite infections

A

Amoxicillin-clavulanate
Ampicillin-sulbactam
Cefoxitin

20
Q

Three types of soft tissue infection caused by P. aeroginosa

A
  1. Ecthyma gangrenosum in neutropenic patients
  2. Hot-tub folliculitis
  3. Cellulitis following penetrating injury
21
Q

Etiologic agents of necrotizing fascitis

A
22
Q

hallmark of pleurodynia (coxsackievirus B), trichinellosis, and bacterial infection

A

Severe muscle pain

23
Q

usually follows severe penetrating injuries that result in interruption of the blood supply and introduction of soil into the wounds

A

Gas gangrene

24
Q

a variant of necrotizing fascitis caused by mixed aerobic and anaerobic bacteria with exclusion of clostridial organisms

A

Synergistic nonclostridial anaerobic myonecrosis

25
Q

Treatment of common infections of the skin

A
26
Q

Reasons for early and aggressive surgical exploration of suspected necrotizing fascitis, myositis and gangrene

A
  1. Visualize deep structures
  2. Remove necrotic tissue
  3. Reduce compartment pressure
  4. Obtain suitable material for Gram’s staining and for aerobic and anaerobic cultures
27
Q

duration of antibiotic treatment

A

should be continued until all signs of systemic toxicity have resolved, all devitalized tissue has been removed, and granulation tissue has developed