The author describes the physiological changes that occur and the anesthetic considerations necessary at increased altitudes and under concomitant low barometric pressure levels, pointing out the differences between the acclimatized and the unacclimatized patient. Drawing from the literature and personal experience, the author explores the altered behavior of respiratory gases and anesthetic agents at increased altitudes.
作者描述了在海拔升高及伴随低气压水平时发生的生理变化以及必要的麻醉注意事项，指出了适应环境者与未适应环境者之间的差异。作者借鉴文献及个人经验，探讨了海拔升高时呼吸气体和麻醉剂行为的改变。
