Ethyl Glucuronide Screen with Reflex to Confirmation, Urine


Abbrev Code:ETHGLU   
Order Code:LAB1142Order Name:Ethyl Glucuronide Screen with Reflex to Confirmation, Urine
Synonyms:Alcohol Biomarkers, Urine; ETG
Methodology:Qualitative enzyme immunoassay/Quantitative liquid chromatography/Tandem mass spectrometry; Reflex: Confirmation Quantitation by LC-MS/MS
CPT Codes: 80307 x1, 80307 x1, 80321 x1, 80321 x1
Turnaround Time:Specimens are sent to the reference laboratory Sun-Sat; results are reported within 1-4 days.
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Urine Collection Procedure



Collection Instructions

Specimen:Urine, random collection
Optimal Volume:4 mL
Minimum\Peds Volume:1 mL
Container:Plastic leakproof container, sterile


Processing and Shipping

Specimen Processing:Aliquot 4 mL, 1 mL minimum. Store in refrigerator.
Shipping Instructions:Ship at refrigerated temperature.
Stability:1 week at room temperture; 1 month refrigerated; 1 month frozen.
Test Performed at or Referral Lab Lab Sendouts  (ARUP)
Referral Lab number:2007912; confirmation reflex: 2007909


Interpretive

Reference Range:Screen cutoff concentration: 500 ng/mL. Ethyl glucuronide is a direct metabolite of ethanol and can be detected up to 80 hours in urine after ethanol ingestion. The cutoff for positive by immunoassay is set at 500 ng/mL. A positive result will be confirmed by liquid chromatography/tandem mass spectrometry (LC-MS/MS).
Use:Useful for general screening in the assessment of ethanol exposure in the context of compliance and/or abuse. A screen with reflex testing is the preferred method for ruling out ethanol exposure. For follow-up testing of a presumptive result, Ethyl Glucuronide and Ethyl Sulfate, Urine, Quantitative is preferred. Results do not accurately correlaet with the amount or frequency of ethanol use.


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