Ethyl Glucuronide/Ethyl Sulfate (EtG/EtS), Screen and Confirmation, Urine

CPT: 80307
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Test Details

Use

Detect ingestion of ethanol.

Limitations

This test was developed, and its performance characteristics determined, by LabCorp. It has not been cleared or approved by the US Food and Drug Administration (FDA).

Methodology

Initial testing by immunoassay (IA); confirmation of positives by mass spectrometry (MS)

Additional Information

Ethyl glucuronide (EtG) is a direct metabolite of ethanol, which is formed by enzymatic conjugation of ethanol with glucuronic acid. Alcohol in the urine is normally detected for only a few hours versus several days for EtG. EtG, therefore, can be used to monitor compliance programs for abstinence from alcohol.

Specimen Requirements

Specimen

Urine

Volume

20 mL

Minimum Volume

10 mL (Note: This volume does not allow for repeat testing.)

Container

Plastic urine container. Use evidence tape or tamper-evident container for forensic specimens. Collection kits are available by request from the laboratory.

Collection

Urine temperature monitoring is recommended for samples tested for medicolegal purposes.

Storage Instructions

Maintain specimen at room temperature. If arrival at lab will extend beyond three days, refrigerate.

LOINC® Map

Order Code Order Code Name Order Loinc Result Code Result Code Name UofM Result LOINC
737610 Ethyl Glucuronide, Urine 764490 Ethyl Glucuronide Screen, Ur ng/mL 45324-1
Reflex Table for Ethyl Glucuronide Screen, Ur
Order Code Order Name Result Code Result Name UofM Result LOINC
Reflex 1 737611 Ethyl Glucuronide LC/MS/MS 737612 EtG/EtS LC/MS/MS 74758-4
Reflex Table for Ethyl Glucuronide Screen, Ur
Order Code Order Name Result Code Result Name UofM Result LOINC
Reflex 1 737611 Ethyl Glucuronide LC/MS/MS 737613 Ethyl Glucuronide 58377-3
Reflex Table for Ethyl Glucuronide Screen, Ur
Order Code Order Name Result Code Result Name UofM Result LOINC
Reflex 1 737611 Ethyl Glucuronide LC/MS/MS 737614 Ethyl Glucuronide LC/MS/MS ng/mL 45324-1
Reflex Table for Ethyl Glucuronide Screen, Ur
Order Code Order Name Result Code Result Name UofM Result LOINC
Reflex 1 737611 Ethyl Glucuronide LC/MS/MS 737605 Ethyl Sulfate 74683-4
Reflex Table for Ethyl Glucuronide Screen, Ur
Order Code Order Name Result Code Result Name UofM Result LOINC
Reflex 1 737611 Ethyl Glucuronide LC/MS/MS 737603 Ethyl Sulfate LC/MS/MS ng/mL 58425-0
Reflex Table for Ethyl Glucuronide Screen, Ur
Order Code Order Name Result Code Result Name UofM Result LOINC
Reflex 1 737611 Ethyl Glucuronide LC/MS/MS 734590 Please Note: N/A
Reflex Table for Ethyl Glucuronide Screen, Ur
Order Code Order Name Result Code Result Name UofM Result LOINC
Reflex 1 737611 Ethyl Glucuronide LC/MS/MS 701819 EtG GC/MS Holding N/A

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