Intravenous fluid management for the acutely ill child

Area of Science:

• Pediatric critical care medicine
• Clinical pharmacology
• Nephrology

Background:

• Hospital-acquired hyponatremia is a common complication in acutely ill children receiving intravenous fluids (IVFs).
• Stimuli such as pain, stress, and illness increase arginine vasopressin (AVP) levels, predisposing children to hyponatremia.
• Traditional use of hypotonic IVFs contributes significantly to this risk.

Purpose of the Study:

• To review the principles of prescribing IVFs in acutely ill children.
• To outline strategies for adjusting sodium composition and fluid rate to prevent serum sodium and volume disorders.
• To provide evidence-based recommendations for IVF selection in pediatric care.

Main Methods:

• Review of recent prospective studies and clinical data.
• Analysis of the impact of hypotonic vs. isotonic IVFs on serum sodium levels.
• Evaluation of risk factors for hyponatremia in hospitalized children.

Main Results:

• Hypotonic IVFs are associated with a high incidence of hospital-acquired hyponatremia in children.
• 0.9% sodium chloride (NaCl) effectively prevents acute hyponatremia in pediatric patients.
• Most hospitalized children requiring IVFs benefit from 0.9% NaCl.

Conclusions:

• Routine administration of hypotonic IVFs should be discontinued in pediatric care.
• 0.9% NaCl is the recommended intravenous fluid for the majority of hospitalized children.
• Fluid and sodium restriction or hypotonic fluids may be necessary in specific clinical scenarios (e.g., edematous states, free water losses).