危重病人院前急救中存在不同程度的呼吸衰竭，移动式气动呼吸机能很好地解决低氧血症。我们对海口市急救中心１２６例危重病人转送中使用气动呼吸机前后的指端血氧饱和度（ＳａＯ２）和动脉血气分析的变化进行了分析，报告如下。１病例与方法１．１病例１９９６年１１月～... Prehospital emergency services for critically ill patients present with varying degrees of respiratory failure, and mobile pneumoconiosis is a good solution to hypoxemia. We analyzed the changes of finger oxygen saturation (SaO2) and arterial blood gas analysis before and after the use of pneumatic ventilator in 126 critical-case patients in Haikou emergency center. The report is as follows. 1 cases and methods 1.1 cases in November 1996 ~ ...