Ethylmalonic acid, Methylsuccinic acid, Propionylglycine, Isobutyrylglycine, Glutaric acid, Butyrylglycine, 2-Methylbutyrylglycine, Isovalerylglycine, 3-Methylcrotonylglycine, Tiglylglycine, Hexanoylglycine, Phenylpropionylglycine, Trans-cinnamoylglycine, Suberylglycine, and Creatinine, Random Urine
Gas Chromatography/Mass Spectrometry (GC/MS)
This test was developed and its analytical performance characteristics have been determined by Quest Diagnostics. It has not been cleared or approved by FDA. This assay has been validated pursuant to the CLIA regulations and is used for clinical purposes.
Acylglycines in Urine
Specimen requirements | |
|---|---|
| Patient preparation | None Specified |
| Preferred specimen(s) | 10 mL urine collected in sterile screw-cap container, with no preservative and 10 mL urine collected in sterile screw-cap container |
| Alternative specimen(s) | 24-hour urine, no preservative and 24-hour urine • Catheterized urine, no preservative and Catheterized urine • First void clean catch urine, no preservative and First void clean catch urine |
| Minimum volume | 2 mL and 0.5 mL |
| Collection instructions | Sterile screw-cap container. Ship frozen. Do not thaw. From one thoroughly mixed sterile collection container, divide into two sterile collections: 1) Minimum 2 mL in sterile screw-cap container and 2) Minimum 0.5 mL in sterile screw-cap container. Freeze immediately. Send both samples together. Patient age should be included. |
| Transport container | Sterile screw-cap container(s) |
| Transport temperature | Frozen |
| Specimen stability | Room temperature Unacceptable Refrigerated 72 hours Frozen 28 days |
| Reject criteria | Shipping room temperature for more than 3 days • Shipping refrigerated for more than 3 days • Specimens with pH <2 |
Reference ranges are provided as general guidance only. To interpret test results use the reference range in the laboratory report.
*The CPT codes provided are based on AMA guidance and are for informational purposes only. CPT coding is the sole responsibility of the billing party. Please direct any questions regarding coding to the payer being billed.
This material contains content from LOINC® (http://loinc.org). The LOINC Table, LOINC Table Core are copyright © 1995-2019, Regenstrief Institute, Inc. and the Logical Observation Identifiers Names and Codes (LOINC) Committee and is available at no cost under the license at http://loinc.org/license.
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