:Normal range
Blood, umol/L*
Newborn: 40-90
Infants: 20-80
Children: 45-80
Adults: 50-70
Urine, umol/L*
Infants: < 33
Children: < 40
Adults: 40-308
Comment: Look amino acid in plasma & urine
Sample: 24hr urine, spot urine, plasma, (lithium heparin) separate immediately