:Normal range
Blood, umol/L*
Newborn: 40-220
Infants: 40-150
Children: 40-100
Adults: 40-100
Urine, umol/L*
Infants: <87
Children: <132
Adults: 41-281
Comment: Look amino acid in plasma & urine
Sample: 24hr urine, spot urine, plasma, (lithium heparin) separate immediately