Infection Control · single question
In the hierarchy of hazard controls, which level is considered LEAST effective (last resort)?
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Correct answer: A. Personal protective equipment (PPE)
Hierarchy of controls (most to least effective): Elimination > Substitution > Engineering Controls > Administrative Controls > PPE. PPE is the LAST LINE of defense and least reliable — it does not remove the hazard but protects the worker. Virtual consultation = Elimination (most effective).
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