:Normal range
Blood, umol/L*
Newborn: 45-200
Infants: 50-160
Children: 65-140
Adults: 55-140
Urine, umol/L*
Infants: <388
Children: <751
Adults: 430-2310
Comment: Look amino acid in plasma & urine
Sample: 24hr urine, spot urine, plasma, (lithium heparin) separate immediately