What is the adequate urine output for an infant?

What is the adequate urine output for an infant?

• A. 1 mL/kg/hr
• B. 2 mL/kg/hr
• C. 3 mL/kg/hr
• D. 4 mL/kg/hr

Answer: (B)

Urine output per kilogram per hour is a practical way to gauge whether an infant is adequately hydrated and has good kidney perfusion. In infants, about 2 mL of urine produced per kilogram of body weight each hour is considered an adequate target. This reflects the immature but functioning kidneys needing a reliable perfusion and hydration level. So, for a 3-kilogram infant, you’d expect roughly 6 mL of urine per hour to meet this standard. Values around or above this range indicate acceptable output, while consistently lower output can signal dehydration or poor perfusion, and higher output might point to diuresis or fluid imbalance.

Urine output per kilogram per hour is a practical way to gauge whether an infant is adequately hydrated and has good kidney perfusion. In infants, about 2 mL of urine produced per kilogram of body weight each hour is considered an adequate target. This reflects the immature but functioning kidneys needing a reliable perfusion and hydration level.

So, for a 3-kilogram infant, you’d expect roughly 6 mL of urine per hour to meet this standard. Values around or above this range indicate acceptable output, while consistently lower output can signal dehydration or poor perfusion, and higher output might point to diuresis or fluid imbalance.