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Aminoaciduria

Definition

Alternative Names

Amino acids - urine; Urine amino acids

How the Test is Performed

A clean-catch urine sample is needed. This is often done at your doctor's office or health clinic.

How to Prepare for the Test

How the Test will Feel

The test involves only normal urination.

Why the Test is Performed

Normal Results

The specific value is measured in micromoles per deciliter (micromol/dL).

  • Alanine
    • Children: 65 to 190
    • Adults: 160 to 690
  • Alpha-aminoadipic acid
    • Children: 25 to 78
    • Adults: 0 to 165
  • Alpha-amino-N-butyric acid
    • Children: 7 to 25
    • Adults: 0 to 28
  • Arginine
    • Children: 10 to 25
    • Adults: 13 to 64
  • Asparagine
    • Children: 15 to 40
    • Adults: 34 to 100
  • Aspartic acid
    • Children: 10 to 26
    • Adults: 14 to 89
  • Beta-alanine
    • Children: 0 to 42
    • Adults: 0 to 93
  • Beta-amino-isobutyric acid
    • Children: 25 to 96
    • Adults: 10 to 235
  • Carnosine
    • Children: 34 to 220
    • Adults: 16 to 125
  • Citrulline
    • Children: 0 to 13
    • Adults: 0 to 11
  • Cystine
    • Children: 11 to 53
    • Adults: 28 to 115
  • Glutamic acid
    • Children: 13 to 22
    • Adults: 27 to 105
  • Glutamine
    • Children: 150 to 400
    • Adults: 300 to 1,040
  • Glycine
    • Children: 195 to 855
    • Adults: 750 to 2,400
  • Histidine
    • Children: 46 to 725
    • Adults: 500 to 1,500
  • Hydroxyproline
    • Children: not measured
    • Adults: not measured
  • Isoleucine
    • Children: 3 to 15
    • Adults: 4 to 23
  • Leucine
    • Children: 9 to 23
    • Adults: 20 to 77
  • Lysine
    • Children: 19 to 140
    • Adults: 32 to 290
  • Methionine
    • Children: 7 to 20
    • Adults: 5 to 30
  • 1-methylhistidine
    • Children: 41 to 300
    • Adults: 68 to 855
  • 3-methylhistidine
    • Children: 42 to 135
    • Adults: 64 to 320
  • Ornithine
    • Children: 3 to 16
    • Adults: 5 to 70
  • Phenylalanine
    • Children: 20 to 61
    • Adults: 36 to 90
  • Phosphoserine
    • Children: 16 to 34
    • Adults: 28 to 95
  • Phosphoethanolamine
    • Children: 24 to 66
    • Adults: 17 to 95
  • Proline
    • Children: not measured
    • Adults: not measured
  • Serine
    • Children: 93 to 210
    • Adults: 200 to 695
  • Taurine
    • Children: 62 to 970
    • Adults: 267 to 1,290
  • Threonine
    • Children: 25 to 100
    • Adults: 80 to 320
  • Tyrosine
    • Children: 30 to 83
    • Adults: 38 to 145
  • Valine
    • Children: 17 to 37
    • Adults: 19 to 74

Normal value ranges may vary slightly among different laboratories. Talk to your doctor about the meaning of your specific test results.

The examples above show the common measurements for results for these tests. Some laboratories use different measurements or may test different specimens.

What Abnormal Results Mean

Increased total urine amino acids may be due to:

Considerations


Review Date: 6/4/2013
Reviewed By: Chad Haldeman-Englert, MD, FACMG, Wake Forest School of Medicine, Department of Pediatrics, Section on Medical Genetics, Winston-Salem, NC. Review provided by VeriMed Healthcare Network. Also reviewed by David Zieve, MD, MHA, Bethanne Black, and the A.D.A.M. Editorial team.
The information provided herein should not be used during any medical emergency or for the diagnosis or treatment of any medical condition. A licensed medical professional should be consulted for diagnosis and treatment of any and all medical conditions. Call 911 for all medical emergencies. Links to other sites are provided for information only -- they do not constitute endorsements of those other sites. © 1997- A.D.A.M., Inc. Any duplication or distribution of the information contained herein is strictly prohibited.
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