California Registered Dental Assistant (RDA) Written Practice Exam

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The high-speed hand piece and reusable air-water syringe tip should be flushed with water

  1. Once at the beginning of the day

  2. After treating each patient

  3. Once at the end of the day

  4. Only when visibly soiled

The correct answer is: After treating each patient

Flushing the high-speed hand piece and reusable air-water syringe tip with water is important for preventing cross-contamination between patients. Option A of only flushing once at the beginning of the day does not take into account any potential contamination that could occur during treatment. Option C of only flushing once at the end of the day also does not adequately address the possibility of contamination between patients. Option D of only flushing when visibly soiled is not sufficient, as contamination can occur even if the equipment appears clean. Flushing after treating each patient is the best option for maintaining a clean and sanitary environment for dental procedures.

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