Stericheck TEST

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To quote the CDC: A spore test should be used on each sterilizer at least weekly. Users should follow the manufacturers directions for how to place the biological indicator in the sterilizer. A spore test should also be used for every load with an implantable device. Ideally, implantable items should not be used until they test negative."

Sterilization procedures should be monitored using biological, mechanical, and chemical indicators. Biological indicators, or spore tests, are the most accepted means of monitoring sterilization because they assess the sterilization process directly by killing known highly resistant microorganisms (e.g., Geobacillus or Bacillus species). However, because spore tests are only done weekly and the results are usually not obtained immediately, mechanical and chemical monitoring should also be done..

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If the mechanical (e.g., time, temperature, pressure) and chemical (internal or external) indicators suggest that the sterilizer is functioning properly, a single positive spore test result probably does not indicate sterilizer malfunction. Items other than implantable items do not necessarily need to be recalled. However, the sterilizer should be removed from service and sterilization operating procedures reviewed to determine whether operator error could be responsible. Sterilizer operators should repeat the spore test immediately using the same cycle that produced the positive spore test. If the result of the repeat spore test is negative and operating procedures were correct, then the sterilizer can be returned to service. If the repeat spore test result is positive, do not use the sterilizer until it has been inspected or repaired and rechallenged with spore tests in three consecutive fully loaded chamber sterilization cycles. When possible, items from suspect loads dating back to the last negative spore test should be recalled, rewrapped, and resterilized. Results of biological monitoring and sterilization monitoring reports should be documented.