California Registered Dental Assistant (RDA) Written Practice Exam

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How can exposure of dental healthcare personnel to nitrous oxide gases be reduced?

  1. By ensuring good room ventilation

  2. By using a scavenger system on the nitrous oxide equipment

  3. By limiting the duration of procedures

  4. By wearing a mask

The correct answer is: By using a scavenger system on the nitrous oxide equipment

Using a scavenger system on the nitrous oxide equipment is the best option for reducing exposure to the gas. This system collects and removes excess gas from the room, making it safer for dental healthcare personnel. While good room ventilation and wearing a mask may also help reduce exposure, they are not as effective as a scavenger system. Limiting the duration of procedures may also help reduce exposure, but it is not a reliable or preventative measure.

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