Which of the following is true regarding the handling of empty cylinders?

• A. They can be left on the machine.
• B. They should be filled with a yoke plug if removed.
• C. They can be stored upright without supervision.
• D. They must always be attached to a pressure gauge.

Answer: (B)

When handling empty cylinders, it is important to ensure safety and prevent potential hazards. The correct statement highlights the practice of filling empty gas cylinders with a yoke plug when they are removed from the anesthesia machine. This is a critical safety measure because it prevents the risk of accidental gas leaks from the outlet ports of the machine when the cylinders are disconnected. By using a yoke plug, the integrity of the system is maintained, and the risk of contamination or inadvertent gas release is minimized.

In contrast, simply leaving empty cylinders on the machine can cause confusion and create a risk of accidental disconnection of a connected, full cylinder, potentially leading to an unexpected gas supply interruption during critical moments. Storing empty cylinders upright without supervision is not advisable, as they could fall over, posing a safety hazard. Lastly, while it is important to monitor cylinder pressure, empty cylinders do not need to be attached to a pressure gauge; this is typically required for active, full cylinders. Thus, the practice of using yoke plugs for removed cylinders is an essential part of ensuring safety in an operating room environment.