乳酸钠林格氏(Lactate Ringer’s)液(以下简写为“LR 液”)的电解质浓度与血浆相似,故广泛应用于细胞外液的补充。手术出血量较大时应输入血液,为了迅速补充丧失的功能性细胞外液和血液,在一定条件下常需血液与“LR”液同路输入。这就面临着两者混合比例问题。 Lactate Ringer’s (hereinafter abbreviated as “LR”) electrolyte has a similar electrolyte concentration to that of plasma and is therefore widely used for the extracellular fluid replenishment. Surgery should be entered into the blood volume greater, in order to quickly replace the loss of functional extracellular fluid and blood, under certain conditions often need blood and “LR” fluid at the same way input. This faces the problem of the mixture ratio between the two.