一旦发生火灾、中毒等灾害事故,唯一能做的一件事情就是设法赶紧把危重伤员送进医院,第一时间进行现场急救也是多么重要。人的心跳停止后,全身血液循环即停止,脑组织及许多主要器官因得不到新鲜氧气和血液供给而将发生细胞坏死。此时,必须在病人肺内有新鲜氧气进行气体交换的情 In the event of a fire, poisoning and other disasters, the only thing that can be done is to try to quickly put the seriously wounded into the hospital. It is also important to conduct the first aid on the scene first time. After the heart beats, the systemic blood circulation stops, and the brain and many major organs will undergo necrosis due to lack of fresh oxygen and blood supply. At this point, you must have fresh oxygen in the patient’s lungs for gas exchange