在我国的大中城市 ,一般都建有中心血站 ,实行统一采血和统一供血。而在边远地区的中小医院 ,因地处偏僻 ,交通不便 ,统一供血几乎是不可能的 ,同时这些地区路况较差 ,交通事故和外伤等造成的失血性休克较常见。但因其对血源的需求不定时 ,没有规律性 ,因此 ,血源的保障成为困 In China’s large and medium-sized cities, central blood stations are generally established to conduct unified blood collection and blood supply. In small and medium-sized hospitals in remote areas, due to remoteness and inaccessibility, it is almost impossible to provide uniform blood supply. At the same time, the road conditions in these areas are poor, and hemorrhagic shock caused by traffic accidents and trauma is more common. However, due to its irregular demand for blood sources, there is no regularity. Therefore, the protection of blood sources becomes