Acylglycines, Quantitative, Urine
Order Code: ACYLG
Epic Lab Code: LAB2538
Order Form: A-1a Miscellaneous Request or Epic Req
Commercial Mail-out Laboratory
01250 PFP
356-3527
Specimen(s):
Random Urine
Collection Medium:
Yellow top conical tube (no additive)
Minimum:
Preferred Minimum: 10 mL random urine
Absolute Minimum: 4 mL random urine
Specimen Instructions:
1. Patient's age is required.

2. Include family history, clinical condition (asymptomatic or acute episode), diet, and drug therapy information.
Turn Around Time:
5 days upon receipt at reference laboratory (not reported on Saturday or Sunday)
Reference Range:
Control Values Results Expressed as mg/g Creatinine Range Ethylmalonic Acid 0.5-20.2 2-Methylsuccinic Acid 0.4-13.8 Glutaric Acid 0.6-15.2 Isobutyrylglycine 0.0-11.0 n-Butyrylglycine 0.1- 2.1 2-Methylbutyrylglycine 0.3- 7.5 Isovalerylglycine 0.3-14.3 n-Hexanoylglycine 0.2- 1.9 n-Octanoylglycine 0.1- 2.1 3-Phenylpropionylglycine 0.0- 1.1 Suberylglycine 0.0-11.0 trans-Cinnamoylglycine 0.2-14.7 Dodecanedioic Acid (12 DCA) 0.0- 1.1 Tetradecanedioic Acid (14 DCA) 0.0- 1.0 Hexadecanedioic Acid (16 DCA) 0.0- 1.0
Interpretive Data:
When abnormal results are detected, a detailed interpretation is given, including an overview of the results and of their significance; a correlation to available clinical information; elements of differential diagnosis; recommendations for additional biochemical testing and in vitro confirmatory studies (enzyme assay, molecular analysis); name and phone number of key contacts who may provide these studies at the reference laboratory or elsewhere; and a phone number to reach one of the laboratory directors in case the referring physician has additional questions.
Comments:
Freeze urine as soon as possible; this task is performed by Specimen Control in Pathology. Avoid dilute urine when possible. Clinical information is needed for appropriate interpretation. Additional required information includes age, gender, diet (e.g., TPN therapy), drug therapy, and family history.
Methodology:
Gas Chromatography-Mass Spectrometry (GC-MS) Stable Isotope Dilution Analysis
CPT Code:
82544