得克斯特标准:来自上、下腔和冠状窦的右房静脉血,由未混匀,故正常人血氧含量可差2vo1%,右室可差lvo1%,至肺动脉时已混匀,相差仅0.5vol%相差仅5vol至肺动脉时已混匀
Copyright © 2018 WordTech Co.