Diphtheria: Diagnosis and Treatment
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Questions and Answers

What percentage of occasional residents in the respiratory tract are viruses?

  • 30%
  • 70% (correct)
  • 50%
  • 90%

    • What is the most common bacterial cause of tonsillitis/pharyngitis?

  • Corynebacterium diphtheriae
  • Corona virus
  • Rhino virus
  • Streptococcus pyogenes (correct)

    • What is the function of M-protein in Streptococcus pyogenes?

  • Produces toxins
  • Enhances phagocytosis
  • Promotes inflammation
  • Resists phagocytosis (correct)

    • What is a common symptom of tonsillitis/pharyngitis?

    <p>Sore throat</p> Signup and view all the answers

    What is a complication of Streptococcus pyogenes infection?

    <p>Rheumatic fever</p> Signup and view all the answers

    What is the treatment for Streptococcus pyogenes infection?

    <p>Penicillin for 10 days</p> Signup and view all the answers

    What is the mechanism of action of Corynebacterium diphtheriae?

    <p>Produces exotoxin that causes tissue destruction</p> Signup and view all the answers

    What is the characteristic of the pseudomembrane in Corynebacterium diphtheriae infection?

    <p>Gray debris layer composed of dead cells and fibrin</p> Signup and view all the answers

    What is the specimen used for laboratory diagnosis of Streptococcus pyogenes?

    <p>Throat swab</p> Signup and view all the answers

    What is the alternative antibiotic used for Streptococcus pyogenes infection in allergic patients?

    <p>Erythromycin</p> Signup and view all the answers

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