The calculation of IV fluid requirements is based on the child's weight and clinical status. The Holliday-Segar method is commonly used:
- For children weighing 3-10 kg: 100 mL/kg/day - For children weighing 11-20 kg: 1000 mL plus 50 mL for each kg over 10 - For children weighing over 20 kg: 1500 mL plus 20 mL for each kg over 20
