Plasma amino acids
Alternate Names : Amino acids blood test
Normal Values
All measurements are in micromole per liter (micro mol/L). Normal values may vary between different laboratories. Talk to your doctor about your specific test results. - Alanine
- Children: 200 to 450
- Adults: 230 to 510
- Alpha-aminoadipic acid
- Children: not measured
- Adults: not measured
- Alpha-amino-N-butyric acid
- Children: 8 to 37
- Adults: 15 to 41
- Arginine
- Children: 44 to 120
- Adults: 13 to 64
- Asparagine
- Children: 15 to 40
- Adults: 45 to 130
- Aspartic acid
- Children: 0 to 26
- Adults: 0 to 6
- Beta-alanine
- Children: 0 to 49
- Adults: 0 to 29
- Beta-amino-isobutyric acid
- Children: not measured
- Adults: not measured
- Carnosine
- Children: not measured
- Adults: not measured
- Citrulline
- Children: 16 to 32
- Adults: 16 to 55
- Cystine
- Children: 19 to 47
- Adults: 30 to 65
- Glutamic acid
- Children: 32 to 140
- Adults: 18 to 98
- Glutamine
- Children: 420 to 730
- Adults: 390 to 650
- Glycine
- Children: 110 to 240
- Adults: 170 to 330
- Histidine
- Children: 68 to 120
- Adults: 26 to 120
- Hydroxyproline
- Children: 0 to 5
- Adults: not measured
- Isoleucine
- Children: 37 to 140
- Adults: 42 to 100
- Leucine
- Children: 70 to 170
- Adults: 66 to 170
- Lysine
- Children: 120 to 290
- Adults: 150 to 220
- Methionine
- Children: 13 to 30
- Adults: 16 to 30
- 1-methylhistidine
- Children: not measured
- Adults: not measured
- 3-methylhistidine
- Children: 0 to 52
- Adults: 0 to 64
- Ornithine
- Children: 44 to 90
- Adults: 27 to 80
- Phenylalanine
- Children: 26 to 86
- Adults: 41 to 68
- Phosphoserine
- Children: 0 to 12
- Adults: 0 to 12
- Phosphoethanolamine
- Children: 0 to 12
- Adults: 0 to 55
- Proline
- Children: 130 to 290
- Adults: 110 to 360
- Serine
- Children: 93 to 150
- Adults: 56 to 140
- Taurine
- Children: 11 to 120
- Adults: 45 to 130
- Threonine
- Children: 67 to 150
- Adults: 92 to 240
- Tyrosine
- Children: 26 to 110
- Adults: 45 to 74
- Valine
- Children: 160 to 350
- Adults: 150 to 310
What do Abnormal Results Mean?
An increase in the total level of amino acids in the blood amino may be due to: A decrease in the total level of amino acids in the blood may be due to: High or low concentrations of individual plasma amino acids must be interpreted along with other clinical information. Abnormal results may be due to diet, hereditary problems with the ability of the body to handle the amino acid, or to drug effects.
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