ACYLG - Performance: Acylglycines, Quantitative, Urine

Test Catalog

Test Name

Test ID: ACYLG    
Acylglycines, Quantitative, Urine

Method Description Describes how the test is performed and provides a method-specific reference

Urine volumes equivalent to 0.25 to 0.50 mg of creatinine are spiked with the mixture of labeled internal standards, allowed to equilibrate, acidified, then extracted with ethyl acetate. After evaporation, the dry residue is derivatized to butyl esters. Specimens are analyzed by capillary gas chromatography/mass spectrometry selected ion monitoring using ammonia chemical ionization and a stable isotope dilution method.(Rinaldo P, O'Shea JJ, Welch RD, Tanaka K: Stable isotope dilution analysis of n-hexanoylglycine, 3-phenylpropionylglycine and suberlglycine in human urine using chemical ionization gas chromatography-mass spectrometry selected ion monitoring. Biomed Environ Mass Spectrom 1989;18:471-477)

PDF Report Indicates whether the report includes an additional document with charts, images or other enriched information


Day(s) and Time(s) Test Performed Outlines the days and times the test is performed. This field reflects the day and time the sample must be in the testing laboratory to begin the testing process and includes any specimen preparation and processing time required before the test is performed. Some tests are listed as continuously performed, which means assays are performed several times during the day.

Monday, Wednesday, Friday; 8 a.m.

Analytic Time Defines the amount of time it takes the laboratory to setup and perform the test. This is defined in number of days. The shortest interval of time expressed is "same day/1 day," which means the results may be available the same day that the sample is received in the testing laboratory. One day means results are available 1 day after the sample is received in the laboratory.

5 days (not reported on Saturday or Sunday)

Maximum Laboratory Time Defines the maximum time from specimen receipt at Mayo Medical Laboratories until the release of the test result

14 days

Specimen Retention Time Outlines the length of time after testing that a specimen is kept in the laboratory before it is discarded

3 months

Performing Laboratory Location The location of the laboratory that performs the test