Test Overview
Test Methodology

Gas Chromatography/Mass Spectromety (GC/MS) Stable Isotope Dilution Analysis

Test Usage

Biochemical diagnosis of selected inborn errors of metabolism by quantitative determination of target urinary metabolites that are present in amounts below the detection limit of routine organic acid analysis.

Reference Range *

Interpretive report provided.

* Reference ranges may change over time. Please refer to the original patient report when evaluating results.

Test Limitations

Due to the limited number of metabolites included in the acylglycine analysis, it is recommended that an "Organic Acids Screen, Urine" also be performed concurrently.

Test Details
Days Set Up
Monday, Wednesday, Friday
Analytic Time

5 - 15 days

Soft Order Code
ACYLG
MiChart Code
Acylglycines, Urine, Quantitative
Synonyms
  • Hexadecanedioic Acid
  • Tetradecanedioic Acid
  • Dodecanedioic Acid
  • trans-Cinnamoylglycine
  • Suberylglycine
  • 3-Phenylpropionylglycine
  • n-Octanoylglycine
  • 2-Methylbutyrylglycine
  • n-Hexanoylglycine
  • Isovalerylglycine
  • n-Butyrylglycine
  • Isobutyrylglycine
  • Glutaric Acid
  • 2-Methylsuccinic Acid
  • Ethylmalonic Acid
  • ACYLG
  • Acylglycines, QN, U
Laboratory
Sendout
Reference Laboratory
Mayo ACYLG (81249)
Section
Special Testing
Test Updated
Update Type
Replacement Test
Specimen Requirements
Collection Instructions

Collect random urine specimen and freeze.

Normal Volume
10 mL urine
Minimum Volume
4 mL urine
Additional Information

Test includes 6 organic acids (ethylmalonic acid, 2-methylsuccinic acid, glutaric acid, dodecanedioic acid, tetradecanedioic acid, and hexadecanedioic acid) and nine acylglycines (isobutyrlglycine, n-butyrlglycine, 2-methylbutyrlglycine, isovalerylglycine, n-hexanoylglycine, n-octanoyl-glycine 3-phenylpropionylglycine, suberylglycine, and trans-cinnamoylglycine). Test sent to Mayo Medical Laboratories.

Billing
CPT Code
82542
Fee Code
AA219
LOINC
32280-0
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