What is the recommended sodium requirement for preterm infants in parenteral nutrition?

The recommended sodium requirement for preterm infants in parenteral nutrition is typically in the range of 2-4 mEq/kg/day. This recommendation is based on the physiological needs of preterm infants, who are at a higher risk for electrolyte imbalances due to their immature renal function and overall metabolic processes. Sodium is essential for maintaining fluid balance, nerve function, and muscle contraction, and its adequate intake is crucial to support the growth and developmental needs of these vulnerable infants.

In preterm infants, the precise sodium requirement can be influenced by factors such as gestational age, weight, diet, and the presence of any underlying medical conditions. Therefore, healthcare providers often adjust sodium levels based on each infant's clinical status. The 2-4 mEq/kg/day range provides a safe guideline to ensure sufficient sodium is delivered while minimizing the risk of hypernatremia or other complications related to electrolyte imbalance.