Practice Quiz

Certified Nursing Assistant Exam Prep

Category - Physical Care

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When you say sterile, it means:
  1. The material is clean.
  2. The material and the equipment are sterilized and have undergone a rigorous sterilization process.
  3. There is a black stripe on the paper indicator.
  4. The material has no microorganism nor spores present that might cause an infection.
Explanation
Answer: D - Sterilization is the process of killing all microorganisms, including spores and viruses. Cleaning a material, rather than sterilizing it, only limits the number of pathogens present and reduces the ability of the pathogen to cause infection. The presence of a black stripe on the paper indicator is not a reliable indicator that the material is sterile, even though the autoclave tape turns black after fifteen minutes of sterilization.
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