A Member of the University of Maryland Medical System   |   In Partnership with the University of Maryland School of Medicine

Share

Email PageEmail Print PagePrint
Loading

Home > Medical Reference > Encyclopedia (English)

Toggle: English / Spanish

 

Ask the Expert

Growth and Nutrition Experts’s Bio Image

Get answers to your child's growth, nutrition, and feeding behavior questions.

Growth and Nutrition Experts’s Bio | Q&A Archive

Note: This is for informational purposes only. Doctors cannot provide a diagnosis or individual treatment advice via e-mail. Please consult your physician about your specific health care concerns.

Related Content


 

Plasma amino acids - Results

Alternative 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

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:

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.

  • Reviewed last on: 5/12/2011
  • Frank A. Greco, M.D., Ph.D., Director, Biophysical Laboratory, The Lahey Clinic, Burlington, MA. Review provided by VeriMed Healthcare Network. Also reviewed by David Zieve, MD, MHA, Medical Director, A.D.A.M., Inc.
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.
adam.com
 
Adam QualityA.D.A.M., Inc. is accredited by URAC, also known as the American Accreditation HealthCare Commission (www.urac.org). URAC's accreditation program is an independent audit to verify that A.D.A.M. follows rigorous standards of quality and accountability. A.D.A.M. is among the first to achieve this important distinction for online health information and services. Learn more about A.D.A.M.'s editorial policy, editorial process and privacy policy. A.D.A.M. is also a founding member of Hi-Ethics and subscribes to the principles of the Health on the Net Foundation (www.hon.ch).

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.
adam.com
Connect with UMMC
Facebook Twitter YouTube Blog iPhone

Please rate the quality of this article.

Do you find this article to be helpful / informative?
              
Poor                                       Excellent

Do you have any brief comments on this page: (up to 255 characters)

© 2011 University of Maryland Medical Center (UMMC). All rights reserved.
UMMC is a member of the University of Maryland Medical System,
22 S. Greene Street, Baltimore, MD 21201. TDD: 1-800-735-2258 or 1.866.408.6885