:Normal range
Blood, umol/L*
Newborn: 75-200
Infants: 40-190
Children: 80-220
Adults: 75-200
Urine, umol/L*
Infants: < 25
Children: < 55
Adults: 16-123
Comment: Look amino acid in plasma & urine
Sample: 24hr urine, spot urine, plasma, (lithium heparin) separate immediately