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Plasma amino acids - Results

Alternative Names

Amino acids blood test

Normal Values:

  • 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

Note: all measurements in micro mole per liter (micro mol/L). The normal range of values may vary between different laboratories.

What 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:

  • Reviewed last on: 5/25/2007
  • Daniel R Alexander, MD, Department of Internal Medicine, St. Mary's Hospital, Leonardtown, MD. Review provided by VeriMed Healthcare Network.
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