“天有不测风云,人有旦夕祸福”。随着城市老龄化和膳食结构变化,心脑血管病日趋增加,心绞痛、心肌梗死、中风等病例也多起来;随着现代化程度的提高,职业中毒、车祸、空难等也时有发生。据统计,上海每年急诊病人约451万人次,其中院外急救病人约11万人次,急救病人中外伤、脑血管疾病、急腹症居前三位。因此,现场急救已成为当代社会的一个突出问题。现场急救是院前急救的一个重要组成部分,急救是否及时、得当,关系到抢救的成败。城市尽管医疗力量比较集中,医疗水平比较高,医疗网络比较完善,但不可能做到 “The weather is unpredictable, and everyone has time and again.” With the aging of the city and changes in dietary patterns, cardiovascular and cerebrovascular diseases are increasing day by day. Angina, myocardial infarction, strokes and other cases are also growing. Occupational poisoning, car accidents, and crashes also occur from time to time as the level of modernization increases. According to statistics, there are about 4.51 million emergency patients each year in Shanghai, of which about 11 million emergency patients are outside the hospital. Emergency patients suffer from trauma, cerebrovascular disease, and acute abdomen among the top three. Therefore, on-site first aid has become a prominent issue in contemporary society. On-site emergency treatment is an important part of pre-hospital care. Whether emergency treatment is timely or appropriate depends on the success or failure of rescue. Although the medical power is relatively concentrated, the medical level is relatively high, and the medical network is relatively complete, it is impossible to achieve