Estimate dextrose bolus math or fluid-bag dextrose concentration math using visible percent-solution arithmetic. This tool is arithmetic support only and does not recommend a dextrose protocol or treatment plan.
Calculation steps will appear here for verification.
A 10 kg dog needs a 0.25 g/kg dextrose bolus from a 50% stock solution.
Total dose = 10 kg x 0.25 g/kg = 2.5 g
Stock volume = 2.5 / (50 / 100) = 5 mL
The arithmetic answer is 5 mL of 50% dextrose before any separate decision about dilution, route, or line selection.
Estimate the answer before revealing it: how much 50% dextrose stock is needed to make a 1 L bag into 2.5% dextrose?
Stock to add = 1000 x 2.5 / 50 = 50 mL.
Total dextrose in the bag = 1000 x 2.5 / 100 = 25 g.
If you want the final bag concentration to stay exact, remove 50 mL of base fluid before adding the stock.
Last reviewed: May 2026
References: Plumb's Veterinary Drug Handbook, Merck Veterinary Manual, BSAVA Formulary, AAHA Guidelines. Verify against current references before clinical use.