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HelpTest ID ETGC Ethyl Glucuronide Confirmation, Random, Urine
Ordering Guidance
For situations where chain of custody is required, a Chain of Custody Kit (T282) is available. For chainof-custody testing, order ETGX / Ethyl Glucuronide Confirmation, Chain of Custody, Random, Urine.
Additional drug panels and specific requests are available: call 800-533-1710 or 507-266-5700.
Additional Testing Requirements
If urine creatinine is required or adulteration of the sample is suspected, the following test should also be ordered, ADULT / Adulterants Survey, Random, Urine.
Specimen Required
Supplies: Sarstedt 5 mL Aliquot Tube (T914)
Collection Container/Tube: Plastic urine container
Submission Container/Tube: Aliquot Tube, 5 mL
Specimen Volume: 1 mL
Collection Instructions:
1. Collect a random urine specimen.
2. No preservative.
Additional Information:
1. No specimen substitutions.
2. STAT requests are not accepted for this test.
3. Submitting <1 mL will compromise our ability to perform all necessary testing.
Forms
If not ordering electronically, complete, print, and send a Therapeutics Test Request (T831) with the specimen.
Secondary ID
63421Useful For
Monitoring abstinence in clinical and justice system settings
Method Name
Liquid Chromatography-Tandem Mass Spectrometry (LC-MS/MS)
Reporting Name
Ethyl Glucuronide Confirmation, USpecimen Type
UrineSpecimen Minimum Volume
0.5 mL
Specimen Stability Information
| Specimen Type | Temperature | Time |
|---|---|---|
| Urine | Refrigerated (preferred) | 28 days |
| Frozen | 28 days | |
| Ambient | 72 hours |
Clinical Information
Ethyl glucuronide (EtG) and ethyl sulfate (EtS) are minor metabolites of ethanol that are detectable in body fluids following alcohol consumption and, less commonly, following extraneous exposure. EtG and EtS can be detected up to 5 days in urine using a cutoff of 500 ng/mL.(1)
Reference Values
Negative
Cautions
Please note that incidental exposure to alcohol in many daily use products (ie, hand sanitizers, mouthwash) may result in detectable levels of ethyl glucuronide (EtG) and/or ethyl sulfate (EtS).
In addition, upper respiratory infections as well as beta-glucuronidase hydrolysis may lower levels of EtG but do not seem to affect EtS.(2)
EtG/EtS results should be interpreted in the context of all available clinical and behavioral information.
Day(s) Performed
Tuesday, Thursday, Sunday
Report Available
3 to 5 daysPerforming Laboratory
Mayo Clinic Laboratories in Rochester
Test Classification
This test was developed and its performance characteristics determined by Mayo Clinic in a manner consistent with CLIA requirements. It has not been cleared or approved by the US Food and Drug Administration.CPT Code Information
80321; G0480 (if appropriate)