What is the normal neonatal urine output?

What is the normal neonatal urine output?

• A. 1 mL/kg/hr
• B. 0.5 mL/kg/hr
• C. 2 mL/kg/hr
• D. 1.5 mL/kg/hr

Answer: (A)

Normal urine output in newborns is about 1 mL per kilogram of body weight per hour. This rate reflects adequate kidney function and renal perfusion in a healthy neonate. In practice, hourly output is often tracked by weighing diapers (roughly 1 gram equals 1 mL of urine). Why this matters: producing around 1 mL/kg/hr is considered the normal baseline; urine output falling below this threshold (oliguria) can signal dehydration, reduced circulating volume, renal impairment, or systemic illness requiring prompt assessment and intervention. For a 3 kg infant, that corresponds to roughly 3 mL of urine per hour. The other values listed would exceed the typical minimum for normal neonatal function and are not the standard benchmark.

Normal urine output in newborns is about 1 mL per kilogram of body weight per hour. This rate reflects adequate kidney function and renal perfusion in a healthy neonate. In practice, hourly output is often tracked by weighing diapers (roughly 1 gram equals 1 mL of urine).

Why this matters: producing around 1 mL/kg/hr is considered the normal baseline; urine output falling below this threshold (oliguria) can signal dehydration, reduced circulating volume, renal impairment, or systemic illness requiring prompt assessment and intervention. For a 3 kg infant, that corresponds to roughly 3 mL of urine per hour. The other values listed would exceed the typical minimum for normal neonatal function and are not the standard benchmark.