California Registered Dental Assistant (RDA) Written Practice Exam

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Which of the following is considered regulated medical waste?

Used gloves
Paper towels
Biopsy tissue
Dental floss

The correct answer is: Biopsy tissue

Biopsy tissue is considered regulated medical waste because it contains potentially infectious materials and can pose a risk of spreading infection. Used gloves and dental floss may also potentially contain infectious materials, but they are not considered regulated medical waste unless they are visibly soiled with blood or other bodily fluids. Paper towels do not typically contain infectious materials and are not considered regulated medical waste.