Holliday-Segar Pediatric Maintenance Fluids Calculator (4-2-1 Rule)
Pediatric clinical standard (Holliday & Segar / AAP 2018 Guidelines). Applies 4-2-1 rule based on child body weight.
Input Parameters
Instant Calculation Result
Adjust values on the left to calculate live results.
In-Depth Guide & Mathematical Methodology
💧 AAP 2018 Maintenance Solution Recommendations
Isotonic Fluids: Use 0.9% Normal Saline + 5% Dextrose (+ 20 mEq/L KCl) to prevent hospital-acquired hyponatremia.
Avoid Hypotonic Fluids: Do not use 0.2% or 0.45% Saline as routine maintenance in hospitalized children.
Frequently Asked Questions (FAQ)
What is the Holliday-Segar Pediatric Maintenance Fluids Calculator (4-2-1 Rule) and how does it work?
Pediatric clinical standard (Holliday & Segar / AAP 2018 Guidelines). Applies 4-2-1 rule based on child body weight.
How do I use this Holliday-Segar Pediatric Maintenance Fluids Calculator (4-2-1 Rule)?
Enter child body weight in kilograms (kg). Review hourly IV infusion rate (mL/h) and 24-hour total maintenance volume.
What mathematical formula is used in this calculation?
4-2-1 Rule: Weight 1-10 kg: 4 mL/kg/h. Weight 11-20 kg: 40 + 2 mL/kg/h over 10 kg. Weight > 20 kg: 60 + 1 mL/kg/h over 20 kg.
Is the Holliday-Segar Pediatric Maintenance Fluids Calculator (4-2-1 Rule) on FindCalculator free to use?
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