Dula D J, Skiendzielewski J J, Royko M
Ann Emerg Med. 1981 Nov;10(11):575-8. doi: 10.1016/s0196-0644(81)80195-3.
Levels of nitrous oxide were monitored in the emergency department during the use of a Nitronox machine after four and eight minutes of breathing gas. Levels near the user's head were found to be 800 to 1,200 parts per million. Levels at the center of the room peaked at 300 ppm after eight minutes of use, and spot checks in the emergency department hall adjacent to the test room were less than 10 ppm. Ventilation was measured in the test room and was found to influence the peak level of nitrous oxide and the rapidity of washout of the gas from the room. The results of this study should prompt the development of guidelines for the use of nitrous oxide in the emergency department setting.
在使用笑气混合麻醉机时，于急诊科对呼吸气体4分钟和8分钟后的一氧化二氮水平进行了监测。发现使用者头部附近的水平为百万分之800至1200。使用8分钟后，房间中央的水平峰值为300 ppm，在紧邻测试室的急诊科大厅进行的抽查结果低于10 ppm。对测试室的通风情况进行了测量，发现其会影响一氧化二氮的峰值水平以及气体从房间排出的速度。本研究结果应促使制定急诊科环境中一氧化二氮使用的指南。
