Reducing the oxygen concentration of gases delivered from anaesthetic machines unadapted for medical air

被引:3
作者
Clutton, R. E. [1 ]
Schoeffmann, G. [1 ]
Chesnil, M. [1 ]
Gregson, R. [1 ]
Reed, F. [1 ]
Lawson, H. [1 ]
Eddleston, M. [2 ,3 ]
机构
[1] Royal Dick Sch Vet Studies, Dept Vet Clin Studies, Roslin EH25 9RG, Midlothian, Scotland
[2] Univ Edinburgh, Clin Pharmacol Unit, Ctr Cardiovasc Sci, Edinburgh, Midlothian, Scotland
[3] Royal Infirm Edinburgh NHS Trust, Natl Poisons Informat Serv Edinburgh, Edinburgh, Midlothian, Scotland
基金
英国惠康基金;
关键词
NITROUS-OXIDE; HEAD-INJURY; TOXICITY; INACTIVATION; TRIAL;
D O I
10.1136/vr.d4928
中图分类号
S85 [动物医学(兽医学)];
学科分类号
0906 ;
摘要
High fractional concentrations of inspired oxygen (FiO(2)) delivered over prolonged periods produce characteristic histological changes in the lungs and airway of exposed animals. Modern medical anaesthetic machines are adapted to deliver medical air (FiO(2)=0.21) for the purpose of reducing FiO(2); anaesthetic machines designed for the veterinary market have not been so adapted. Two inexpensive modifications that allow medical air to be added to the gas flow from veterinary anaesthetic machines are described. The advantages and disadvantages of each modification are discussed.
引用
收藏
页码:440 / U41
页数:4
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