Infection Control · single question

Installing a hand-sanitizing station in a dental office is best categorized as which type of infection control measure?

  1. Work practice control
  2. Administrative control
  3. Engineering control
  4. Personal protective equipment
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Correct answer: C. Engineering control

Engineering controls are physical modifications to the work environment that reduce or eliminate hazards — they include things like ventilation systems, sharps containers, high-volume evacuation, and hand-sanitizing stations. These are distinct from administrative controls (policies, training) and PPE (physical barrier worn by the worker).
  • A. Work practice controls are changes in how tasks are performed (e.g., one-handed needle recapping technique) — not physical installations.
  • B. Administrative controls are policies, procedures, and protocols (e.g., handwashing policy) — not physical installations. The station itself is an engineering control.
  • C. CORRECT. A hand-sanitizing station is a physical modification of the work environment (engineering control) that reduces the transmission of pathogens by making hand hygiene more accessible and convenient.
  • D. PPE refers to items worn by the worker (gloves, masks, gowns, eyewear) — not physical modifications to the environment.

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