Referred Tests
| Web: | mayocliniclabs.com |
|---|---|
| Email: | mcl@mayo.edu |
| Telephone: | 800-533-1710 |
| International: | +1 855-379-3115 |
| Values are valid only on day of printing. | |
Test ID: ETGX
Ethyl Glucuronide Confirmation, Chain of Custody, Random, Urine
Testing Algorithm 
Delineates situations when tests are added to the initial order. This includes reflex and additional tests.
Adulterants testing will be performed on all chain-of-custody urine samples as per regulatory requirements.
Specimen Type Describes the specimen type validated for testing
Urine
Specimen Required Defines the optimal specimen required to perform the test and the preferred volume to complete testing
Supplies: Chain of Custody Kit (T282)
Container/Tube: Chain of Custody Kit (T282) containing the specimen containers, seals, and documentation required.
Specimen Volume: 20 mL
Collection Instructions: Collect specimen in the provided container, seal, and submit with the associated documentation to satisfy the legal requirements for chain-of-custody testing.
Additional Information: Submitting <20 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.
Specimen Minimum Volume Defines the amount of sample necessary to provide a clinically relevant result as determined by the Testing Laboratory
2.5 mL
Reject Due To Identifies specimen types and conditions that may cause the specimen to be rejected
| All specimens will be evaluated at Mayo Clinic Laboratories for test suitability. |
Specimen Stability Information Provides a description of the temperatures required to transport a specimen to the performing laboratory, alternate acceptable temperatures are also included
| Specimen Type | Temperature | Time | Special Container |
|---|---|---|---|
| Urine | Refrigerated (preferred) | 28 days | |
| Frozen | 28 days | ||
| Ambient | 72 hours |