Certified Healthcare Safety Professional (CHSP) Practice Exam

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Tuberculosis (TB) is most commonly spread through which method?

  1. Blood transfusions

  2. Direct contact with skin lesions

  3. Inhalation of small particles

  4. Consuming contaminated food

The correct answer is: Inhalation of small particles

Tuberculosis (TB) is primarily an airborne disease, and it is most commonly spread through the inhalation of small particles, specifically tiny droplet nuclei that are released into the air when a person with active TB coughs, sneezes, talks, or even breathes. These particles can remain suspended in the air for extended periods and can be inhaled by individuals in the vicinity, leading to the transmission of the bacteria responsible for TB. The inhalation route is particularly significant in the context of TB's spread because it highlights the importance of air quality and ventilation in environments where individuals may be in close proximity. Understanding this mode of transmission is crucial for implementing effective infection control measures in healthcare settings and community health initiatives. This focus on airborne spread differentiates TB from other diseases that might use different methods of transmission, such as blood, direct contact, or consumption of contaminated materials.