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 (A)</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 (A)</p> Signup and view all the answers

What is the leading cause of infectious disease deaths worldwide?

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

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

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

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

<p>Crowded living conditions (D)</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 (D)</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 (D)</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 (A)</p> Signup and view all the answers

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