Test Catalog

Test ID: AAQP    
Amino Acids, Quantitative, Plasma

Useful For Suggests clinical disorders or settings where the test may be helpful

Evaluation of patients with possible inborn errors of metabolism using plasma specimens


May aid in evaluation of endocrine disorders, liver diseases, muscle diseases, neoplastic diseases, neurological disorders, nutritional disturbances, renal failure, and burns

Testing Algorithm Delineates situations when tests are added to the initial order. This includes reflex and additional tests.

Includes quantitation of the following amino acids: taurine, threonine, serine, asparagine, glutamic acid, glutamine, proline, alanine, citrulline, alpha-amino-n-butyric acid, valine, cystine, methionine, isoleucine, leucine, tyrosine, phenylalanine, beta-alanine, ornithine, lysine, histidine, argininosuccinic acid, allo-isoleucine, arginine, phosphoserine, phosphoethanolamine, hydroxyproline, glycine, aspartic acid, ethanolamine, sarcosine, 1-methylhistidine, 3-methylhistidine, carnosine, anserine, homocitruline, alpha-aminoadipic acid, gamma-amino-n-butyric acid, beta-aminoisobutyric acid, hydroxylysine, cystathionine, and tryptophan.


See Epilepsy: Unexplained Refractory and/or Familial Testing Algorithm in Special Instruction.

Special Instructions Library of PDFs including pertinent information and forms related to the test

Method Name A short description of the method used to perform the test

Liquid Chromatography-Tandem Mass Spectrometry (LC-MS/MS)

Portions of this test are covered by patents held by Quest Diagnostics

NY State Available Indicates the status of NY State approval and if the test is orderable for NY State clients.


Reporting Name Lists a shorter or abbreviated version of the Published Name for a test

Amino Acids, QN, P

Aliases Lists additional common names for a test, as an aid in searching

Maple Syrup Urine Disease (MSUD)
MSUD (Maple Syrup Urine Disease)
Isovaleric Acidemia
Methylmalonic Acidemia (MMA)
Mitochondrial Energy Metabolism (Primary Lactic Acidemias)
Nonketotic Hyperglycinemia (NKH)
Phenylketonuria (PKU)
Propionic Acidemia
Tyrosinemia, Type I
Urea Cycle Disorders
Arginase Deficiency
Argininosuccinic Acid
Argininosuccinic Acid Lyase Deficiency
Argininosuccinic Aciduria
Carbamoyl Phosphate Synthetase (CPS) Deficiency
N-acetyl Glutamate Synthase (NAGS) Deficiency
NAGS (N-acetyl Glutamate Synthetase)
Ornithine Transcarbamylase (OTC) Deficiency
OTC (Ornithine Transcarbamylase)
UCD (Urea Cycle Disorder)
Urea Cycle Disorder (AAUCD)
Maple syrup disease
Tyrosinemia, type II
CPS (Carbamoyl Phosphate Synthetase)