Medtox
Synonyms
EtG; ETG; EtS; ETS
Test Includes
Ethyl glucuronide (EtG); Ethyl sulfate (EtS)
Expected Turnaround Time
5 days
Turnaround time is defined as the usual number of days from the date of pickup of a specimen for testing to when the result is released to the ordering provider. In some cases, additional time should be allowed for additional confirmatory or additional reflex tests. Testing schedules may vary.
Related Information
In-house validated method
Specimen Requirements
Specimen
Urine (random)
Volume
20 mL
Minimum Volume
10 mL
Container
Plastic urine container or transport tube without preservative
Storage Instructions
Submission/transport (<3 days): Room temperature. For storage beyond three days, specimen should be refrigerated or frozen.
Test Details
Use
Detect use of ethanol
Methodology
Initial presumptive testing by immunoassay at a testing threshold of 500 ng/mL; presumptive positives confirmed by definitive liquid chromatography/tandem mass spectrometry (LC/MS-MS) at the following testing thresholds: Ethyl glucuronide, 500 ng/mL; Ethyl sulfate, 250 ng/mL