California Registered Dental Assistant (RDA) Written Practice Exam

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Used radiograph fixer solution is usually considered?

  1. Safe to dispose of in regular trash

  2. Non-hazardous waste

  3. Recyclable material

  4. Hazardous waste

The correct answer is: Hazardous waste

Used radiograph fixer solution typically contains silver which is considered hazardous waste and should not be disposed of in regular trash or recycled as silver can be harmful to the environment. While it may be non-hazardous in small amounts, it is best to properly dispose of it as hazardous waste in order to protect the environment.

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