Maintenance Fluid Regimen for Children

Fluid Composition

The American Academy of Pediatrics recommends using isotonic balanced Plain Lactated Ringer's solution for maintenance fluid therapy in children to reduce the risk of hyponatremia and slightly reduce length of stay 1, 2
Glucose should be added to the PLR solution in sufficient amounts to prevent hypoglycemia, with blood glucose monitoring performed at least daily 2, 3
Potassium should be added to the maintenance fluid based on the child's clinical status and regular potassium level monitoring to avoid hypokalemia 1, 3

For an 8-year-old child, the maintenance fluid volume should be calculated using the Holliday-Segar formula, with the first 10 kg: 100 mL/kg/day 3, the second 10 kg: 50 mL/kg/day 1, and the remaining kg: 20 mL/kg/day 1
The calculated volume should be restricted to 65-80% of the total amount to avoid fluid overload and prevent hyponatremia 1, 2

The total daily maintenance fluid should include all sources of fluid: IV fluids, blood products, IV medications, line flush solutions, and any enteral intake 2, 3
Monitor the child daily for fluid balance, clinical status, and electrolytes (especially sodium levels) 1, 3
For children with heart failure, renal failure, or hepatic failure, restrict maintenance fluid volume further to 50-60% of the calculated volume 3, 4

Avoid using lactate buffer solutions in children with severe liver dysfunction to prevent lactic acidosis 1, 4
If the child is minimally dehydrated and able to tolerate oral intake, consider transitioning to oral hydration as this is preferred over IV maintenance fluids 1

Monitor blood glucose at least daily to guide glucose provision and prevent both hypoglycemia and hyperglycemia 1
Regularly assess electrolytes, especially sodium levels, to detect and prevent electrolyte imbalances 2, 3
Daily weight measurements and strict intake/output monitoring are essential to guide fluid therapy 3