Pediatric Maintenance Fluid Recommendations

Fluid Type and Composition

The European Society of Paediatric and Neonatal Intensive Care (ESPNIC) recommends using isotonic balanced crystalloid solutions, such as Ringer's Lactate, to reduce the risk of hyponatremia in acutely ill children, with Level A evidence and strong consensus 1, 2, 3
The American Academy of Pediatrics and other guidelines suggest that balanced crystalloid solutions, like Ringer's Lactate, should be preferred over normal saline to reduce length of stay, with Level A evidence for acutely ill children and Level B evidence for critically ill children 1, 2, 3
Lactate-buffered solutions should be avoided in severe liver dysfunction to prevent lactic acidosis, as recommended by the Society of Critical Care Medicine 1, 3
Sufficient glucose must be included in maintenance fluids, guided by at least daily blood glucose monitoring, to prevent hypoglycemia, as suggested by the Endocrine Society 1, 4, 3
Potassium should be added based on clinical status and regular monitoring to avoid hypokalemia, with recommendations from the American Heart Association 1, 4, 3

The Holliday-Segar formula should be used to calculate baseline fluid requirements, then restricted to 65-80% of this calculated volume, as recommended by the Pediatric Critical Care Medicine society 1, 4, 2
For children with edematous states, such as heart failure, renal failure, or hepatic failure, fluid restriction to 50-60% of the Holliday-Segar calculation is recommended, by the American College of Cardiology 1, 2
All fluid sources, including IV fluids, blood products, IV medications, line flushes, and enteral intake, should be included in daily calculations, as suggested by the Society of Critical Care Medicine 1, 4, 2

Reassessment of fluid balance and clinical status should be done at least daily, with monitoring of electrolytes, especially sodium levels, and blood glucose, as recommended by the European Society of Paediatric and Neonatal Intensive Care (ESPNIC) 1, 4, 3
The goal is to avoid fluid overload and cumulative positive fluid balance, which can prevent prolonged mechanical ventilation and increased length of stay, with Level D evidence but strong consensus from the American Thoracic Society 1, 4, 2

The enteral or oral route should be considered if tolerated, to reduce length of stay and costs, with Level C evidence for acutely ill children, as suggested by the American Gastroenterological Association 1, 2
IV maintenance should be reserved for children who cannot tolerate enteral intake, as recommended by the Society of Pediatric Nurses 1