Ethyl Glucuronide, Urine Confirm/Quant
Test Mnemonic
UEGQNT
CPT Codes
- 80321 - QTY (1)
- G0480 - QTY (1)
Includes
- Ethyl Glucuronide
- Ethyl Sulfate
Performing Laboratory
ARUP
Specimen Requirements
| Volume | Type | Container | Collect Temperature | Transport Temperature | Special Instructions |
|---|---|---|---|---|---|
| 4 mL | Urine, random | Clean container | Refrigerated |
Minimum Specimen Requirements
| Volume | Type | Container | Collect Temperature | Transport Temperature | Special Instructions |
|---|---|---|---|---|---|
| 1 mL |
Stability
| Environmental Condition | Description |
|---|---|
| Refrigerated | 20 days |
| Frozen | 20 days |
| Ambient | 1 week |
Days Performed
Sun, Tue - Sat
Turnaround Time
2 - 8 days
Methodology
| Name | Description |
|---|---|
| Quantitative Liquid Chromatography - Tandem Mass Spectrometry |
Reference Range
Clinical Info
Ethyl glucuronide (EtG) and Ethyl Sulfate (EtS) are direct metabolites of ethanol. EtG and EtS can be detected up to 80 hours in urine after ethanol ingestion and the presence of both metabolites can be used as markers for recent alcohol use. The presence of EtG, alone in urine, is not a unique marker of ethanol ingestion. False positive EtG results can occur from microbial formation or from fermentation and false negative EtG results can occur from bacterial degradation. The analytical measurement range is 100-10,000 ng/mL.