Mycobacterium Tuberculosis Overview
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Questions and Answers

How many infectious droplet nuclei can a cough typically produce?

  • 2000
  • 500
  • 1000
  • 3000 (correct)
  • How long can the air in a room remain infectious after the absence of a person with pulmonary TB?

  • 30 minutes (correct)
  • 40 minutes
  • 20 minutes
  • 10 minutes
  • What type of isolation rooms should people with suspected TB or hospitalized HIV-positive patients with respiratory symptoms be admitted to?

  • Positive-pressure isolation rooms
  • Standard hospital rooms
  • Quarantine rooms
  • Negative-pressure isolation rooms (correct)
  • What type of respirator mask is recommended by the CDC for reducing the risk of TB transmission?

    <p>N95 respirator masks</p> Signup and view all the answers

    What is the primary purpose of the BCG vaccine for tuberculosis?

    <p>To prevent the progression to disseminated disease in young children</p> Signup and view all the answers

    What is the leading cause of infectious disease deaths worldwide?

    <p>Mycobacterium tuberculosis</p> Signup and view all the answers

    Which of the following is NOT a characteristic of Mycobacterium tuberculosis?

    <p>Anaerobic and spore-forming</p> Signup and view all the answers

    Which of the following factors contributes to the rapid spread of Mycobacterium tuberculosis?

    <p>Crowded living conditions</p> Signup and view all the answers

    What is the primary reason for the high incidence of tuberculosis in the USA among immigrants from certain countries?

    <p>Higher rates of multidrug-resistant tuberculosis in their home countries</p> Signup and view all the answers

    Which of the following is a risk factor for infection with drug-resistant Mycobacterium tuberculosis?

    <p>Exposure to persons known to have multidrug-resistant tuberculosis</p> Signup and view all the answers

    How does Mycobacterium tuberculosis primarily spread from person to person?

    <p>Through inhalation of droplet nuclei containing the bacteria</p> Signup and view all the answers

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