Common Intravenous Infusion Solutions

Patients are prescribed an IV solution (fluids) based on their electrolyte and fluid volume status. Some commonly used intravenous fluids include normal saline (0.9% sodium chloride), lactated Ringer’s solution, 5% dextrose in water (D5W), and Ringer’s solution. Table A provides a list of some commonly used intravenous solutions. .


TABLE A: COMMON INTRAVENOUS INFUSION SOLUTIONS

SOLUTION ABBREVIATION
0.9% Sodium Chloride NS(Normal Saline)
0.45% Sodium Chloride ½NS
5% Dextrose in Water D5W or D5W
10% Dextrose in Water D10W or D10W
5% Dextrose in 0.9% Sodium Chloride D5NS or D5NS
5% Dextrose in 0.45% Sodium Chloride D5½NS or D5½NS
Lactated Ringer’s (0.86% Sodium Chloride, 0.03% potassium Chloride, 0.033% Calcium Chloride) LR
5% Dextrose in Lactated Ringer’s D5LR or D5LR

Solved Problem: How many grams each of dextrose and sodium chloride are used to prepare a 250-ml bag of D5½NS for intravenous infusion?

Approach: D5½NS has 5 % w/v dextrose and 0.45% w/v sodium chloride

$$ { 250 \ ml \times 0.05 \ ( \ 5 \% ) } = {12.5 \ g \ dextrose } $$

$$ { 250 \ ml \times 0.045 \ ( \ 0.45 \% ) } = {1.125 \ g \ sodium \ chloride }$$

Answer: 12.5 g dextrose, 1.125 g sodium chloride