胎儿宫内缺氧必然导致胎儿酸碱平衡的改变。1962年 Saling 首先应用胎儿头皮血 pH测定,来判断胎儿体内酸碱平衡的状态,从而了解胎儿是否存在宫内窘迫以及窘迫程度等,提出了早期诊断胎儿宫内缺氧的可靠方法。通过本法,能使高危胎儿得到及时处理,从而使围产期死亡率及剖宫产术率得到 Fetal intrauterine hypoxia will inevitably lead to changes in fetal acid-base balance. In 1962, Saling first applied the fetal scalp blood pH measurement to determine the status of fetal acid-base balance in order to understand whether the fetus has intrauterine distress and the degree of distress and so on, put forward a reliable early diagnosis of intrauterine hypoxia. Through this Act, fetuses at high risk can be promptly treated, so that perinatal mortality and cesarean section rate