红细胞增多使血液运送氧的能力增强,从而减小了动静脉氧分压差,这是机体对高原低氧环境的正常生理适应。红细胞如过度增多,则将转为病理过程,给机体带来不利影响。因而有必要探求高原正常值,作为鉴别高原生理适应,和红细胞增多型慢性高山病的参考依据。为此,在青海省玉树州杂多(4067.5米)、治多(4179.1米)两县检查了185 Erythrocyte increases the ability of the blood to transport oxygen, thus reducing the pressure difference between arterial and venous oxygen, which is the body’s normal physiological adaptation to plateau hypoxia. Red blood cells, such as excessive increase, it will turn into the pathological process, to adversely affect the body. Therefore it is necessary to explore the normal plateau as a reference to identify the physiological adaptation of the plateau and erythroid polycythemia. To this end, Yushu Prefecture in Qinghai Province Zaduo (4067.5 meters), rule more (4179.1 meters) two counties checked 185