The calculation of fluid maintenance in children typically follows the Holliday-Segar method, which provides guidelines based on the child's weight:
For the first 10 kg of body weight: 100 ml/kg/day For the next 10 kg of body weight: 50 ml/kg/day For any additional kg of body weight: 20 ml/kg/day
For example, a child weighing 25 kg would need 1000 ml for the first 10 kg, 500 ml for the next 10 kg, and 100 ml for the remaining 5 kg, totaling 1600 ml/day.
