Oliguria (typically defined as mL/kg per hour or mL/day of urine output) may or may not occur in flow, with a common misperception that urine output exceeding to 1 mL/kg per hour corresponds to good renal output. Jul 18, - Age, Output, Comments. Adult, > mL/kg/hr. Child, >1 mL/kg/hr. Neonate, >2 mL/kg/hr.