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HelpTest Code LABYETGCURRFX Ethyl Glucuronide Screen with Reflex to Confirmation, Urine
Clinical Information
This test is intended to screen for the presence of ethyl glucuronide in urine. Results are reported as 'presumptive positive' and are not confirmed.
Synonym
- ETGR
Specimen Required
Preferred Container/Tube: Urine Container Cup
Acceptable Container/Tube: Urine Container Cup, Urine
Specimen Minimum Volume: 1 mL
Specimen Stability Information
Ambient: 24 hours
Refrigerated: 7 days
Rejected Due To
- Quantity not sufficient
- Urine Tubes with preservative
Testing Algorithm
If appropriate, confirmation testing will be performed at an additional charge.
Reflex Tests
| Reporting Name | Available Separately | Always Reported |
|---|---|---|
| Ethyl Glucuronide Confirmation | Yes | No |
Reference Values
None Detected
Cutoff concentration by immunoassay detection:
500 ng/mL
Interpretation
Presumptive positive results may indicate the presence of ethyl glucuronide (EtG), a direct ethanol metabolite, in the urine sample. EtG can be detected up to several days even after complete elimination of alcohol from the body. Negative results may reflect the absence of EtG, or EtG present below the assay's limit of detection. Urine concentrations can vary extensively with fluid intake and other biological variables.
Cautions
Urine samples should not include boric acid preservatives. Exposure to ethanol by other means such as hand sanitizers may cause a false positive result.
This test was developed and its performance characteristics determined by the Laboratories at The Ohio State University Wexner Medical Center. It has not been cleared or approved by the FDA. The laboratory is regulated under CLIA as qualified to perform high-complexity testing. This test is used for clinical purposes. It should not be regarded as investigational or for research.
Method Description
Screen: ARK Ethyl Glucuronide II Assay
Confirmation: Mayo Clinic Laboratories
Performing Lab
Screen: Clinical Lab James
Confirmation: Mayo Clinic Laboratories
Day(s) Performed
Monday through Sunday
Report Available
Screen: Same day/1 day
Reporting Name
Ethyl Glucuronide with Confirmation
CPT Code Information
80307
LOINC Code Information
58375-7