How much pressure does the second-stage regulator reduce oxygen to?

• A. 18 psi
• B. 14 psi
• C. 26 psi
• D. 30 psi

Answer: (B)

The second-stage regulator in an anesthesia machine is designed to reduce the pressure of the oxygen supply to a more manageable level for safe delivery to the patient. Specifically, this regulator lowers the pressure of the gas to a consistent and usable level, which is typically around 14 psi.

This is important because the anesthesia machine uses various components that require specific pressures for proper function. By providing a stable pressure of 14 psi, the second-stage regulator ensures that the oxygen is delivered in a controlled and predictable manner, aiding in effective patient ventilation and maintaining appropriate anesthesia levels.

Understanding this pressure setting is crucial for anesthesia providers, as it helps them ensure that the patient receives the correct concentration of oxygen throughout the procedure while also maintaining safety in the delivery system.