一氧化碳 (ＣＯ)是生活环境和生产环境中最常见的窒息性气体 ,其中毒及死亡人数在我国各种急性中毒中均高居首位 ,在其他国家也是中毒事故中最常见的致病因素[1～ 3] 。急性ＣＯ中毒经及时治疗 ,多数可以痊愈 ,但其中部分患者于意识障碍恢复后 ,经数日到数周的“假愈期” ,还会 Carbon monoxide (CO) is the most common asphyxiant gas in living environment and production environment. The poisoning and death toll are the highest in all kinds of acute poisoning in our country. In other countries, CO is the most common causative factor in poisoning [ 3]. Acute CO poisoning by timely treatment, the majority can be cured, but some of them after the recovery of consciousness, after several days to several weeks of “fake,” but also