Regarding biological (spore) testing of autoclaves, which statement is INCORRECT?

It should be performed at least weekly
It uses Geobacillus stearothermophilus spores
Monthly testing is sufficient
A positive test requires investigation of sterilization failure

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Correct answer: C. Monthly testing is sufficient

ADA/CDC recommend spore testing at LEAST WEEKLY, not monthly. Monthly is insufficient. A positive test = sterilizer failed — instruments since last negative test must be recalled.

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Regarding biological (spore) testing of autoclaves, which statement is INCORRECT?

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