:Normal range
Blood, umol/L*
Newborn: 23-37
Infants: 33-67
Children: 22-44
Adults: < 30
Urine, umol/L*
Infants: < 45
Children: < 65
Adults: 155-390
Comment: Look amino acid in plasma & urine
Sample: 24hr urine, spot urine, plasma, (lithium heparin) separate immediately