中心静脉血较为接近混合静脉血,两者酸碱指标较为相似,采集简单快捷,在太多情况下可用来代替混合静脉血[1 ] 。本文对失血性休克患者进行中心静脉血与动脉血同时行血气分析,评价中心静脉血对机体酸碱状态的意义。1　资料与方法1 1　病例选择　选择美国麻醉医师协会(ASA)病情评 Central venous blood is relatively close to the mixed venous blood, the two indicators of acid-base are similar, the acquisition is simple and quick, in too many cases can be used instead of mixed venous blood [1]. In this paper, patients with hemorrhagic shock central venous blood and arterial blood gas analysis at the same time, evaluate the significance of central venous blood on the body acid-base status. 1 Materials and Methods 1 1 Case Selection Select the American Academy of Anesthesiologists (ASA) evaluation of the disease