Store Front Account Search Product List Basket Contents Checkout

Login or Setup an Account

Lab Tests
Test Profiles
Health Panels

Shopping Cart
Quantity in Cart : none

Amino Acid, Fractionated
  Quantity in Basket: None
Code: LAmb
Price: $345.00
Shipping Weight: 2.00 pounds

General Information

Amino acids (AA) are the building blocks of all proteins and are characterized by the presence of at least one amino group (NH2) and carboxyl or acid group (COOH), hence the name amino acid. Many amino acids are produced by the body, others called essential amino acids, cannot be synthesized by the body in adequate amounts and must be obtained from the diet. The essential amino acids are isoleucine, leucine, lysine, methionine, phenylalanine, threonine, tryptophan, and valine. Semi-essential AA (some are made by the body but not enough to meet the body’s needs) are arginine, histidine, cysteine and taurine. Some disorders associated with AA imbalances include alcoholism, ataxia, behavioral disorders, cardiovascular disease, depression, insomnia, hypertension, eye problems, poor wound healing, digestive problems. Inborn errors of amino acid metabolism, includes phenylketonuria (PKU), tyrosinemia, alkaptonuria, maple syrup urine disease (MSUD), etc.

Amino acids may be ordered as a profile of Essential AA, or as Fractionated AA. The essential AA profile contains arginine, histidine, isoleucine, leucine, lysine, methionine, phenylalanine, threonine, tryptophan, and valine. The fractionated AA profile includes the essential AA plus alanine, asparagine, aspartic acid, a-amino-N-butyric acid, citrulline, cystine, glutamine, glutamic acid, glycine, hydroxyproline, ornithine, proline, serine, tyrosine, and taurine.

Profile Includes: Aspartic acid; glutamic acid; hydroxyproline; serine; asparagine; glycine; glutamine; taurine; histidine; citrulline; threonine; alanine; arginine; proline; a-amino-N-butyric acid; tyrosine; valine; methionine; cystine; isoleucine; leucine; phenylalanine; tryptophan; ornithine; lysine;

Normal Values:
(Amino Acid: Low - High Unit)
Glutamine: 48 - 84 umol/dL
Taurine: 2.8 - 6.8 umol/dL
Histidina: 2.4 - 10.0 umol/dL
Isoleucine: 4.0 - 10.0 umol/dL
Leucine: 9.5 - 19.5 umol/dL
Lysine: 11 - 25 umol/dL
Methionine: 1.7 - 4.5 umol/dL
Phenylalanine: 3.5 - 8.4 umol/dL
Threonine: 5.5 - 14.1 umol/dL
Tryptophan: 0.7 - 2.0 umol/dL
Valine: 18.0 - 34.0 umol/dL
Arginine: 3.0 - 8.0 umol/dL

Processing Time: 5 to 7 business days

Processing Method: The methodology is by HPLC

Amino Acid, Fractionated

Collection Instructions

Specimen Collection: View/Print Instructions (PDF)

CPT Code: 82131 (x25)
Patient Preparation: Fasting
Special Instructions: None
Specimen Volume: 1.5 mL EDTA plasma
Minimum Volume: 0.5 mL
Collection Container: EDTA tube
Transport Container: Plastic transport tube
Transport Instructions: Freeze
Causes for Rejection: Gross Hemolysis
Amino Acid, Fractionated


(1) Alverdy, J.C. Effects of glutamine-supplemented diets on immunology of the gut. J Parent Ent Nutr, 1990,14(4):1095-1135

(2) Meyer, NA, Muller, MJ, Herndon DN Nutrition support of the healing wound. New Horz, 1994,2(2):202-214

(3) Shih, V.E. Amino acid analysis. Physician’s guide to the laboratory diagnosis of metabolic diseases. 1996; London: Chapman and Hall Medical.

This website is managed by the Riordan Clinic, A Non-profit Medical, Research and Educational Organization.
3100 North Hillside Avenue, Wichita, KS 67219 USA - Phone: 316-682-3100; Fax: 316-682-5054
Copyright: 1997/2010 © Riordan Clinic - All Rights Reserved.