全营养素混合液(TNA)在肠外营养的应用

APPLICATION OF TOTAL NUTRIENT ADMIXTURE SOLUTION IN PARENTERAL NUTRITION

脂肪乳剂、葡萄糖、氨基酸、电解质、维生素及微量元素按一定程序混合配成10种全营养素混合液。在4℃14天贮存期内,10种混合液的pH和渗透压变化不大,不同混合液在不同时期的脂粒平均直径变化为0.3135±0.1012μm～0.4813±0.1893μm,94.93％脂粒的直径<0.6μm,无直径>6μm的脂粒,细菌培养阴性。74例共输全营养素混合液1,796次,无不良临床反应和异常实验室检查结果;用1周以上者大都显示氮平衡改善,用2周以上者血清转铁蛋白和白蛋白浓度可有不同程度升高。

Lipid emulsion, glucose, amino acids, electrolytes, vitamins and trace ele- ments were mixed in a definite order to prepare 10 different total nutrient admixture solutions. The pH and osmolality of these solutions did not change significantly during 14 days of storage at 4℃.Mean diameters of the lipid particles on different occasions for the different solutions varied from 0.3135±0.1012μm to 0.4813±0.1893 μm. 94.93% of particles were less than 0.6 μm, and none greater than 6μm. Cultures were all negative.74 patients received 1,796 such infusions. No adverse clinical reactions or abnormal laboratory parameters were observed. Patients on treatment for more than one week showed improved nitrogen balances. Serum transferrin and albumin were increased to varying levels when treatment was for more than two weeks.