The maximum urinary concentration capacity in full term neonates is :
A full term infant can concentrate his urine to a maximum of 700-800 mOsm/kg.
An older child can concentrate 1200-1400 mOsm/kg.
A newborn can dilute his urine to a minimum of 50 mOsm/kg much like an older child.
> 1000 mOsm/litre
350 – 450 mOsm/litre
900 – 1000 mOsm/litre
600 – 700 mOsm/litre