Ethyl glucuronide (ETG) and ethyl sulfate are analyzed. Quantitative results are reported to a threshold of 500 ng/mL ETG and 250 ng/mL ETS.
Please note: Incidental exposure to alcohol may result in detectable levels of ETG and/or ETS. The Center for Substance Abuse Prevention (CSAP) advises caution in interpretation and use of ETG results alone to assess alcohol use. ETG/ETS results should be interpreted in the context of all available clinical and behavioral information.
Liquid Chromatography Tandem Mass Spectrometry (LC/MS/MS)