What are the recommended intravenous fluid types and rates for managing dehydration in children?

For managing dehydration in children, the recommended intravenous fluids are isotonic solutions such as 0.9% sodium chloride or 0.9% sodium chloride with 5% glucose, used for fluid deficit replacement and maintenance NICE CG84.

In cases of fluid resuscitation, use glucose-free crystalloids containing sodium in the range 131–154 mmol/l, with a bolus of 10 ml/kg over less than 10 minutes for children and 10–20 ml/kg for neonates, administered rapidly NICE NG29.

After initial resuscitation, reassess the child's clinical status and continue with maintenance fluids calculated using the Holliday–Segar formula, typically 100 ml/kg/day for the first 10 kg, 50 ml/kg/day for the next 10 kg, and 20 ml/kg/day for the remaining weight NICE NG29.