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Why do Droplet Precautions not call for special air handling and ventilation?
ADroplets are captured by ordinary ceiling air filters
BThese pathogens do not travel infectiously over distance
CDroplets are neutralized by ordinary room disinfectant
DThese pathogens are killed by positive room pressure
Answer & Solution
Correct answer: B. These pathogens do not travel infectiously over distance
1. Droplet spread happens through close respiratory or mucous membrane contact with respiratory secretions.
2. These pathogens do not remain infectious over long distances inside a healthcare facility.
3. Because the reach is short, special air handling and ventilation are not required to interrupt droplet transmission.
4. Ordinary filters, disinfectants and room pressure are not what makes droplet spread stop, so none of them explains the rule.
_Source: CDC Guideline for Isolation Precautions: Preventing Transmission of Infectious Agents in Healthcare Settings (2007), Part III, section III.B.2. Droplet precautions_
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