Phosphatidylethanol (PEth)
Test Mnemonic
PETH
CPT Codes
- 80321 - QTY (1)
- G0480 - QTY (1)
Aliases
- 1-palmitoyl-2-oleoyl-sn-glycero-3-phosph
- 1,2-dioleoyl-sn-glycero-3-phosphoethanol
Includes
- PEth 16:0/18.1 (POPEth)
- PEth 16:0/18.2 (PLPEth)
- PEth Interpretation
- EER Peth
Performing Laboratory
ARUP
Specimen Requirements
| Volume | Type | Container | Collect Temperature | Transport Temperature | Special Instructions |
|---|---|---|---|---|---|
| 1 mL | Whole blood | EDTA (Lavender) | Refrigerated |
Alternate Specimen Requirements
| Volume | Type | Container | Collect Temperature | Transport Temperature | Special Instructions |
|---|---|---|---|---|---|
| 1 mL | Whole blood | Lithium heparin (Green) | Refrigerated | ||
| 1 mL | Whole blood | Potassium oxalate/sodium fluoride (Gray) | Refrigerated |
Minimum Specimen Requirements
| Volume | Type | Container | Collect Temperature | Transport Temperature | Special Instructions |
|---|---|---|---|---|---|
| 0.5 mL |
Stability
| Environmental Condition | Description |
|---|---|
| Refrigerated | 2 weeks |
| Frozen | 1 month |
| Ambient | 2 hours |
Days Performed
Sun - Sat
Turnaround Time
2 - 5 days
Methodology
| Name | Description |
|---|---|
| Quantitative Liquid Chromatography - Tandem Mass Spectrometry |
Reference Range
Special Info
Gel separator tubes will be rejected. Also unacceptable are plain (no additive) red tubes, citrate (light blue) tubes, or SPS or ACD solution (yellow) tubes. This test is New York DOH approved.
Clinical Info
This test may be helpful in monitoring alcohol abstinence.