What system connects the cylinder to the anesthesia machine and requires at least one for oxygen and nitrogen oxide?

• A. Hanger yoke system
• B. Double yoke system
• C. Pressure regulator system
• D. Flow meter system

Answer: (A)

The hanger yoke system is the correct answer because it is specifically designed to securely connect gas cylinders to the anesthesia machine, ensuring safe and effective gas delivery. This system features a yoke assembly for each gas cylinder, equipped with pins that align with the cylinder’s specific gas, providing a secure fit and preventing the wrong gas from being accidentally connected.

In anesthesia practice, oxygen and nitrous oxide are essential gases that require this specific connection system. The hanger yoke allows for easy and quick cylinder changes while maintaining the integrity of the connection to the anesthesia machine.

The other options do not serve the function of connecting the cylinder to the anesthesia machine. The double yoke system would suggest a configuration involving two yokes, which is not a standard term recognized in anesthesia practice. The pressure regulator system is responsible for reducing high cylinder pressure to a usable level but does not connect the cylinder to the machine. Similarly, the flow meter system measures and controls the flow of gases but is located further down the gas delivery pathway and does not serve to connect gas cylinders directly.