过去由于对新生儿肾功能的了解有限,认为其排钠能力很差,故对新生儿水和钠的应用限制很严。从70年代起,对新生儿肾功能的研究有了很大的进展,认为新生儿生后即可应用较大量的盐和水。这对新生儿的液体疗法有了很大的改进。新生几液体疗法的目的与儿童时期一样是维持水和电解质平衡或者是轻度的正平衡(生长的需要)以及恢复由于疾病造成的水 In the past due to limited understanding of renal function in newborns, that its ability to discharge sodium is poor, so the application of water and sodium neonatal restrictions are very strict. Since the 1970s, much progress has been made in the study of renal function in newborns, suggesting that a greater amount of salt and water can be applied after birth. This has greatly improved the liquid therapy for newborns. The purpose of newborn liquid therapy is to maintain water and electrolyte balance or mild positive balance (need for growth) as well as childhood, and to restore water due to illness