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KMID : 1034120090020010019
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Journal of Clinical Nutrition
2009 Volume.2 No. 1 p.19 ~ p.23
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Development of a Numeric Table for Determination of the Amount of Nutrient Solution in an Infusion of Nutrient Stock Solution
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Hong Jeong
Lee Young-Joo
Song Mee-Kyung
Eun Myoung-On
Kim Mee-Hyang
Lee Yeon-Hee
Ahn Youn-Hee
Kim Ji-Yang
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Abstract
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Purpose: The purpose of this study was to make a numeric table for easy adjustment of the amount of 5% dextrose solution or 10% fat emulsion solution when added to a 2- or 3-chamber nutrient stock solution.
Methods: Nutrient stock solutions were designated as group A or B according to the non-protein calorie-to-nitrogen ratio (NCR). The NCR of groups A and B was approximately 100 : 1 and 150 : 1, respectively. The weight (g) of protein which is to be administered to the patient was arranged in increasing order from 30∼100 g in increments of 2 g. An imaginary NCR was arranged from 110 : 1 to 150 : 1. The difference between the imaginary NCR and the NCR of the nutrient stock solution (A) was multiplied by the grams of protein, which is the equivalent amount of additionally administrable calories. Each calorie value was divided by 3.4 or 1.1 to obtain a volume of 5% dextrose solution or 10% fat emulsion, and arranged in increasing order. All calculations were made with a Microsoft Excel program.
Results: The numeric table was made for 2- and 3-chamber solutions in group A. The numeric table for the 2-chamber solution was set for determination of the volume and infusion rate of a 10% fat emulsion. The numeric table for the 3-chamber solution was for determination of the volume of a 5% dextrose solution.
Conclusion: This numeric table can be easily used in adjusting the amount of 5% dextrose solution and 10% fat emulsion at the bedside.
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KEYWORD
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Nutrient stock solution, Numeric table, Nonprotein calorie to nitrogen ratio
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