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Order Code 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 chain-of-custody testing, order ETGX / Ethyl Glucuronide Confirmation, Chain of Custody, Random, Urine.

 

Additional drug panels and specific requests are available: call 800-533-1710.



Additional Testing Requirements


If urine creatinine is required or adulteration of the specimen is suspected, the following test should also be ordered, ADULT / Adulterants Survey, Random, Urine.



Specimen Required


Supplies: Sarstedt Aliquot Tube, 5 mL (T914)

Collection Container/Tube: Plastic urine container

Submission Container/Tube: Plastic, 5-mL tube

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 less than 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.

Useful For

Monitoring abstinence in clinical and justice system settings

Method Name

Liquid Chromatography Tandem Mass Spectrometry (LC-MS/MS)

Reporting Name

Ethyl Glucuronide Confirmation, U

Specimen Type

Urine

Specimen Minimum Volume

0.5 mL

Specimen Stability Information

Specimen Type Temperature Time
Urine Refrigerated (preferred) 28 days
  Ambient  28 days
  Frozen  28 days

Reject Due To

  All specimens will be evaluated at Mayo Clinic Laboratories for test suitability.

Reference Values

Negative

 

Cutoff concentrations by liquid chromatography tandem mass spectrometry:

Ethyl glucuronide: 250 ng/mL

Ethyl sulfate: 100 ng/mL

Method Description

The urine sample is diluted with internal standard in 0.1% formic acid for detection by tandem mass spectrometry.(Unpublished Mayo method)

Day(s) Performed

Monday, Wednesday, Friday

Performing Laboratory

Mayo Clinic Laboratories in Rochester

CPT Code Information

80321; G0480 (if appropriate)