Test ID: FETGL
Alcohol Biomarkers, Urine
Secondary ID 
A test code used for billing and in test definitions created prior to November 2011
NY State Approved Indicates the status of NY State approval and if the test is orderable for NY State clients.
Method Name A short description of the method used to perform the test
Immunoassay (IA)-Screen
Liquid Chromatography/Tandem Mass Spectrometry (LC/MS/MS)-Confirmation; if applicable
Reporting Name A shorter/abbreviated version of the Published Name for a test; an abbreviated test name
Aliases Lists additional common names for a test, as an aid in searching
Ethyl Glucuronide FORWARD
Specimen Type Describes the specimen type needed for testing
Specimen Required Defines the optimal specimen. This field describes the type of specimen required to perform the test and the preferred volume to complete testing. The volume allows automated processing, fastest throughput and, when indicated, repeat or reflex testing.
Submit 20 mL from a random or spot urine collection.
Ship refrigerate.
Specimen Minimum Volume Defines the amount of specimen required to perform an assay once, including instrument and container dead space. Submitting the minimum specimen volume makes it impossible to repeat the test or perform confirmatory or perform reflex testing. In some situations, a minimum specimen volume may result in a QNS (quantity not sufficient) result, requiring a second specimen to be collected.
Note: Submission of the minimum volume results in an elevated
reporting limit and inability to repeat analysis.
Reject Due To Identifies specimen types and conditions that may cause the specimen to be rejected
| Specimens other than | Urine |
| Anticoagulants other than | NA |
| Hemolysis | NA |
| Thawing | Warm OK; Cold OK |
| Lipemia | NA |
| Icteric | NA |
Specimen Stability Information Provides a description of the temperatures required to transport a specimen to the laboratory. Alternate acceptable temperature(s) are also included.
| Specimen Type | Temperature | Time |
|---|---|---|
| Urine | Refrigerated (preferred) | |
| Ambient | 72 hours | |
| Frozen | ||
Reference Values Describes reference intervals and additional information for interpretation of test results. May include intervals based on age and sex when appropriate. Intervals are Mayo-derived, unless otherwise designated. If an interpretive report is provided, the reference value field will state this.
This specimen was screened by immunoassay. Any positive result was confirmed by liquid chromatography with tandem mass spectrometry (LC/MS/MS).
The following threshold concentrations were used for this analysis:
Drug Screening Threshold Confirmation Threshold
Ethyl glucuronide 500 ng/mL 500 ng/mL
Ethyl sulfate 250 ng/mL
Alternative explanations should be explored for any positive finding.
This panel includes tests for specimen validity.
Please note that incidental exposure to alcohol may result in detectable levels of etg and/or ets. The Center for Substance abuse Prevention (CSAP) advises caution in interpretation and use of biomarkers alone to assess alcohol use. ETG/ETS results should be interpreted in the context of all available clinical and behavioral information.
Test Performed By: Medtox Laboratories
402 W. County Road D
St. Paul, MN 55112
Clinical Reference Provides recommendations for further in-depth reading of a clinical nature
Reference: center for substance abuse prevention, "The Role of Biomarkers
in the Treatment of Alcohol use Disorders". Substance Abuse Treatment
advisory, volume 5, issue 4, September 2006.
Day(s) and Time(s) Test Performed Outlines the days and times the test is performed. This field reflects the day and time the sample must be in the testing laboratory to begin the testing process and includes any specimen preparation and processing time required before the test is performed. Some tests are listed as continuously performed, which means assays are performed several times during the day.
Monday through Sunday
Analytic Time Defines the amount of time it takes the laboratory to setup and perform the test. This is defined in number of days. The shortest interval of time expressed is "same day/1 day," which means the results may be available the same day that the sample is received in the testing laboratory. One day means results are available 1 day after the sample is received in the laboratory.
Maximum Laboratory Time Defines the maximum time from specimen receipt at Mayo Medical Laboratories until the release of the test result
Performing Laboratory Location The location of the laboratory that performs the test
CPT Code Information Provides guidance in determining the appropriate Current Procedural Terminology (CPT) code(s) information for each test or profile. The listed CPT codes reflect Mayo Medical Laboratories interpretation of CPT coding requirements. It is the responsibility of each laboratory to determine correct CPT codes to use for billing.
80101/single drug
G0431/Government payers (if appropriate)
LOINC® Code Information Provides guidance in determining the Logical Observation Identifiers Names and Codes (LOINC) values for the result codes returned for this test or profile.
| Result ID | Reporting Name | LOINC Code |
|---|---|---|
| Z2256 | Ethyl Glucuronide | 55349-5 |
| Z2257 | Alcohol Biomarkers Confirmation | In Process |
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