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目的:考察我院临床常见肠外营养液配伍稳定性。方法:配伍液在4种不同条件下放置8 h,观察其外观、p H变化,测定维生素C含量。结果:在含有复合氨基酸的溶液中维生素C的含量随着时间推移不断下降,4 h后溶液由无色变为黄色,维生素C含量降低10%,但p H无明显变化;维生素C在不含复合氨基酸的溶液在6 h内性质稳定。结论:维生素C注射液不建议加入含有复方氨基酸的肠外营养液中使用,宜单独使用。
Objective: To investigate the stability of compatibility of common parenteral nutrition solution in our hospital. Methods: The compatibility solution was placed in 4 different conditions for 8 h, observe the appearance, p H changes, determination of vitamin C content. Results: The content of vitamin C in the solution containing compound amino acids decreased with time. After 4 h, the solution changed from colorless to yellow and the content of vitamin C decreased by 10%, but p H had no obvious change. The solution of composite amino acids was stable within 6 h. Conclusion: Vitamin C injection is not recommended to add compound amino acids in parenteral nutrition used, should be used alone.