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Pediatric Maintenance Fluid Calculator
Calculate maintenance IV fluid rate using the 4-2-1 rule (Holliday-Segar method).
REF
4-2-1 Rule: First 10 kg = 4 mL/kg/hr | Next 10 kg = 2 mL/kg/hr | Each additional kg = 1 mL/kg/hr. The daily equivalent (Holliday-Segar): first 10 kg = 100 mL/kg/day, next 10 kg = 50 mL/kg/day, remaining = 20 mL/kg/day.
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For educational purposes only. Always verify calculations with clinical references and institutional protocols.