What is the expected urinary output for an infant?

The expected urinary output for an infant is approximately 2 ml/kg/hour. This value is based on normal renal function in infants, who have a higher metabolic rate and body water content compared to adults. Infants, especially those in the neonatal period, need to maintain adequate fluid balance, and their kidneys are capable of effectively excreting urine at this rate.

A urinary output of 2 ml/kg/hour allows for sufficient excretion of waste products and demonstrates that the infant's renal system is functioning properly. Monitoring urinary output is an important aspect of assessing hydration status and kidney function in pediatric patients. It helps healthcare providers determine if an infant is adequately hydrated or whether there might be underlying issues that need to be addressed, such as dehydration or renal impairment.

Lower outputs, such as 0.5 ml/kg/hour, do not meet the expected standards for normal urinary excretion in infants and could indicate potential problems, while a higher output like 3 ml/kg/hour might also suggest issues such as diabetes insipidus or excessive fluid intake. Hence, 2 ml/kg/hour is the standard reference point for a healthy infant's urinary output.