A patient with suspected pulmonary tuberculosis asks why the nurse wears a respirator. Which statement is correct?
Correct answer: B. It filters small airborne particles from inhaled air
- A. It prevents transmission through contaminated food
- B. It filters small airborne particles from inhaled air
- C. It protects only against blood exposure
- D. It replaces the need for room ventilation
Explanation
A respirator helps protect the healthcare worker from inhaling small airborne particles that may contain Mycobacterium tuberculosis. It does not replace appropriate ventilation, patient separation and respiratory hygiene.
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About Communicable Diseases
Communicable diseases are studied through the chain of infection, including the agent, reservoir, mode of transmission, portal of entry and susceptible host. Coverage includes isolation, disinfection, immunization, surveillance and outbreak control, with attention to diseases such as tuberculosis, malaria, hepatitis, polio and diarrheal infections.
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