During final preparation, what should be the APL valve position?

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Multiple Choice

During final preparation, what should be the APL valve position?

Explanation:
Open the adjustable pressure-limiting valve fully. In final preparation, you want the circuit to vent freely to atmosphere or the scavenging system so there’s minimal resistance to gas flow and manual ventilation. A fully open APL valve prevents unintended pressure buildup as you test the system, bag the circuit, or verify the setup. If the valve were not fully open, you would face added resistance and a risk of higher pressures in the breathing circuit, making ventilation more difficult.

Open the adjustable pressure-limiting valve fully. In final preparation, you want the circuit to vent freely to atmosphere or the scavenging system so there’s minimal resistance to gas flow and manual ventilation. A fully open APL valve prevents unintended pressure buildup as you test the system, bag the circuit, or verify the setup. If the valve were not fully open, you would face added resistance and a risk of higher pressures in the breathing circuit, making ventilation more difficult.

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