Which option would NOT reduce trace gas pollution in the operating room?

Which option would NOT reduce trace gas pollution in the operating room?

• A. Using a high gas flow in a circle system
• B. Tight mask seal during mask induction
• C. Use of a scavenging system
• D. Periodic maintenance of the anesthesia machine

Answer: (A)

Minimizing exposure to waste anesthetic gases in the operating room hinges on keeping leaks and emissions as low as possible. Using a high fresh gas flow in a circle system increases the amount of anesthetic gas that escapes as waste gas, so it would not reduce pollution and in fact worsens it. In contrast, a tight mask seal during induction minimizes leakage into the room, a scavenging system actively removes waste gases from the breathing circuit, and periodic maintenance ensures the machine and circuits don’t have leaks. Therefore, the choice that would not reduce trace gas pollution is the high gas flow in a circle system.

Minimizing exposure to waste anesthetic gases in the operating room hinges on keeping leaks and emissions as low as possible. Using a high fresh gas flow in a circle system increases the amount of anesthetic gas that escapes as waste gas, so it would not reduce pollution and in fact worsens it. In contrast, a tight mask seal during induction minimizes leakage into the room, a scavenging system actively removes waste gases from the breathing circuit, and periodic maintenance ensures the machine and circuits don’t have leaks. Therefore, the choice that would not reduce trace gas pollution is the high gas flow in a circle system.