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Effects of rapid decompression on blood-gas,electrolyte and lung pathology in rabbits

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Author:
No author available
Journal Title:
CHINESE JOURNAL OF NAUTICAL MEDICINE AND HYPERBARIC MEDICINE
Issue:
3
DOI:
10.3760/cma.j.issn.1009-6906.2005.03.007
Key Word:
减压病;血气分析;电解质;家兔

Abstract: 目的探讨快速减压对兔动脉血气、电解质和肺病理改变的影响.方法将14只实验兔放入加压舱中,于5 min内用压缩空气加压至0.6 MPa,停留60 min,然后于3~5 min内减至常压.分别于进舱前、出舱后3 h和3 d,进行动脉血气、电解质和肺病理检查.结果 (1)快速减压可造成兔动脉血氧分压(PaO2)、氧饱和度(SaO2)和二氧化碳分压(PaCO2)下降;红细胞压积(Hct)升高.(2)快速减压可造成兔肺泡壁充血、肺泡腔内渗出,肺毛细血管内气泡形成.结论 (1)快速减压可造成家兔动脉血气改变和血液浓缩.(2)肺毛细血管内气泡可能是引起动脉血气改变和血液浓缩的原因.

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