PEth Test Calculator

Interpret Phosphatidylethanol biomarkers

Enter PEth Value (ng/mL)

Abstinence / Very Light Consumption

Clinical interpretation defines < 20 ng/mL as indicating abstinence or very light alcohol consumption over the past 2-4 weeks. Often considered a 'Negative' test result in clinical and forensic screening.

Reference Ranges

Negative < 20 ng/mL

Moderate 20 - 200 ng/mL

Heavy > 200 ng/mL

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About PEth Test Calculator

The Phosphatidylethanol (PEth) test is an extremely accurate blood biomarker analysis that detects chronic heavy drinking over a 2-4 week window. Enter your lab test result (ng/mL) to see where the value falls across the recognized levels of abstinence, moderate, or heavy alcohol consumption.

PEth Test Calculator Features

Standardized categorical breaks (20, 200 ng/mL)
Clinical risk definitions
Clear UI coloring indications

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