In immediate-use steam sterilization, which indicators must be placed in the load to validate the process?

In immediate-use steam sterilization, which indicators must be placed in the load to validate the process?

• A. Biological indicators and Class V indicators
• B. Chemical indicators only
• C. No indicators required
• D. Biological indicators only

Answer: (A)

Immediate-use steam sterilization must be validated with both a biological indicator and a Class V internal chemical indicator placed inside the load. The biological indicator tests whether the cycle actually achieved lethal conditions for resistant spores, providing confirmation of sterility. The Class V indicator is a multi-parameter internal chemical indicator that verifies the cycle reached the necessary conditions (temperature, time, steam penetration, and dryness) inside the load. Using only chemical indicators would show that the cycle ran but not confirm sterility; using only a biological indicator wouldn't verify that the specific cycle parameters were met. Therefore, placing both inside the load gives comprehensive validation of the process.

Immediate-use steam sterilization must be validated with both a biological indicator and a Class V internal chemical indicator placed inside the load. The biological indicator tests whether the cycle actually achieved lethal conditions for resistant spores, providing confirmation of sterility. The Class V indicator is a multi-parameter internal chemical indicator that verifies the cycle reached the necessary conditions (temperature, time, steam penetration, and dryness) inside the load. Using only chemical indicators would show that the cycle ran but not confirm sterility; using only a biological indicator wouldn't verify that the specific cycle parameters were met. Therefore, placing both inside the load gives comprehensive validation of the process.