Phosphatidylethanol (PEth)
- Laboratory
- Labcorp
- Test code
- 791584
- Specimen
- Blood
- Fasting
- Not stated
- LOINC
- 74661-0
- Turnaround
- 5 - 10 days
Laboratory assay overview
This test measures blood levels of Phosphatidylethanol (PEth), an alcohol-specific biomarker. PEth may be detectable in blood for approximately 2 to 3 weeks1 following a period of prolonged, regular alcohol consumption or incidents of "binge" or heavy drinking. It is a reliable objective biomarker for validating self-reported consumption and can be used serially to monitor treatment progress over time.
View complete laboratory reference notes
PEth levels in excess of 20 ng/mL are considered evidence of moderate to heavy ethanol consumption.
Labcorp test directory, test code 791584