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Clinical Review Quiz

Bacterial Skin and Soft Tissue Infections

Suzanne J. Templer, DO

Dr. Templer is an infectious diseases attending, Lehigh Valley Hospital, Allentown, PA.



The questions below are based on the article
“Bacterial Skin and Soft Tissue Infections”.


Choose the single best answer for each question.


1. Which of the following organisms is the most commonly identified cause of skin and soft tissue infections (SSTIs) in the United States?
  1. Pseudomonas aeruginosa
  2. Staphylococcus aureus
  3. Staphylococcus epidermidis
  4. Streptococcus pyogenes
Click here to compare your answer.


2. Which of the following organisms causes erysipelas?

  1. Enterococcus faecalis
  2. Staphylococcus aureus
  3. Staphylococcus epidermidis
  4. Streptococcus pyogenes
Click here to compare your answer.


3. What is the main risk factor for developing an SSTI due to Vibrio species?

  1. Animal bites
  2. Hot tubs
  3. Recent hospitalization
  4. Seawater
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4. Treatment of superficial SSTIs may potentially include all of the following except

  1. Débridement
  2. Heat packs
  3. Incision and drainage of any abscesses
  4. Topical antibiotic drugs
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5. Which of the following antibiotic agents used to treat SSTIs is associated with inducible resistance?

  1. Clindamycin
  2. Linezolid
  3. Minocycline
  4. Vancomycin
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6. How does necrotizing fasciitis present?
  1. Indolently
  2. Only after trauma
  3. With well-demarcated borders of erythema
  4. With pain out of proportion to physical findings
Click here to compare your answer.


7. Which main virulence factor allows Streptococcus pyogenes to avoid phagocytosis?

  1. DNAse
  2. Exotoxins SpeA, B, and C
  3. M protein
  4. Streptokinase
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8. Which of the following is not a virulence factor associated with methicillin-resistant Staphylococcus aureus?

  1. Enterotoxin
  2. Hyaluronic acid capsule
  3. mec IV gene
  4. Panton-Valentine leukocidin
Click here to compare your answer.


9. Which of the following is not a cardinal sign of an SSTI?

  1. Atrophy
  2. Erythema
  3. Increased warmth
  4. Tenderness to palpation
Click here to compare your answer.


 

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Updated 4/16/09 • nvf