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Drug Monitoring, Alcohol Metabolite, Quantitative, Urine
Test Code39384
CPT Codes
80321 (HCPCS: G0480)
Includes
If you require medMATCH for this order code, you must also order code 39158 - Prescribed Drugs, medMATCH®. If 39158 is ordered, all Drug Monitoring order codes will be treated as medMATCH.
If this test code is not ordered with 39158, all medMATCH result codes will be DNR’d.
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Ethyl Glucuronide (EtG) and Ethyl Sulfate (EtS)
If this test code is not ordered with 39158, all medMATCH result codes will be DNR’d.
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Ethyl Glucuronide (EtG) and Ethyl Sulfate (EtS)
Preferred Specimen
3 mL urine in a clinical drug test transport vial
Minimum Volume
2 mL
Other Acceptable Specimens
Urine collected in urine collection container
Transport Temperature
Room temperature
Specimen Stability
Room temperature: 14 days
Refrigerated: 14 days
Frozen: 30 days
Refrigerated: 14 days
Frozen: 30 days
Reject Criteria (Eg, hemolysis? Lipemia? Thaw/Other?)
Preserved samples
Methodology
Mass Spectrometry (MS)
Setup Schedule
Set up: Mon-Sat; Report available: 2-3 days
Clinical Significance
Ethyl glucuronide (EtG) and ethyl sulfate (EtS) are minor metabolite of ethanol metabolites and excreted in urine for a longer time than ethanol. Positive EtG and/or EtS test results thus provide a strong indication that the person has recently consumed alcohol, even when ethanol is no longer detectable. The test is a definitive assay using liquid chromatography mass spectroscopy (LC/MS/MS) methodology. Therapeutic urine drug monitoring of these metabolites is important for ensuring compliance to treatment strategies. Urine or oral fluid are the specimens of choice for routine monitoring of patients taking prescription drugs. Use of serum/plasma should be limited to anuretic patients, or where a patient's clinical appearance does not coincide with their prescribed medications. No single monitoring approach provides adequate information about the pattern or dose of patient drug use. Safest prescribing habits should include a combination of tools and laboratory test results to correctly detect drug use patterns.