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Infection Control · single question

What is NOT TRUE about spore tests (biological indicators for sterilizers)?

  1. Perform one every month
  2. Used to verify sterilizer efficacy
  3. Should include a positive control
  4. Required by CDC/ADA infection control guidance
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Correct answer: A. Perform one every month

  • A. Correct (the false statement). Spore/biological indicator testing should be performed at least weekly, not just monthly — monthly testing is insufficient per CDC guidelines.
  • B. This is true — spore tests are the gold standard to verify that the sterilization cycle actually killed resistant bacterial spores.
  • C. True — a positive (unincubated/unsterilized) control spore strip should be run alongside the test to confirm the spores are viable.
  • D. True — regular biological monitoring is recommended by the CDC and ADA for infection control compliance.

Note: Spore tests should be performed at least weekly, not monthly.

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