Which action should be taken with vaporizers during final machine readiness?

Which action should be taken with vaporizers during final machine readiness?

• A. Vaporizers on
• B. Vaporizers off
• C. Vaporizers calibrated
• D. Vaporizers removed

Answer: (B)

During final machine readiness, vaporizers should be off. This prevents volatile anesthetics from being delivered during the leak-test portion of the checkout and ensures the test gas flows through the circuit without passing through the vaporizers, which could skew the test results. Keeping them off allows an accurate assessment of the breathing system’s integrity. After the checks are complete and the machine is ready, vaporizers can be turned on for actual anesthesia delivery. Calibration or validation of vaporizers is a separate maintenance step and not part of the final readiness check.

During final machine readiness, vaporizers should be off. This prevents volatile anesthetics from being delivered during the leak-test portion of the checkout and ensures the test gas flows through the circuit without passing through the vaporizers, which could skew the test results. Keeping them off allows an accurate assessment of the breathing system’s integrity. After the checks are complete and the machine is ready, vaporizers can be turned on for actual anesthesia delivery. Calibration or validation of vaporizers is a separate maintenance step and not part of the final readiness check.