Ingested drugs accumulate permanently in hair in proportion to use, providing a permanent historical record, that is impossible to adulterate. The ethyl glucuronide (EtG) – a trace metabolite of ethanol and a direct alcohol biomarker –alcohol hair test measures average alcohol consumption over a period of approximately three months.
Ingested drugs accumulate permanently in hair in proportion to use, providing a permanent historical record, that is impossible to adulterate. The ethyl glucuronide (EtG) – a trace metabolite of ethanol and a direct alcohol biomarker –alcohol hair test measures average alcohol consumption over a period of approximately three months.
The EtG method for the detection of Alcohol consumption is the most effective and accurate method for the detection of alcohol consumption.
A small sample of hair is taken from an undetectable location at the back of the donor’s head or from a location on their body and then sent to the laboratory for analysis.
Psychemedics uses a triple quad mass spectrometry test to determine the level of ethyl glucuronide (EtG) present in hair.
EtG is measured in pg/mg following the guidelines determined by the World Health Organization in association with the Society of Hair Testing:
PSYCHEMEDICS Alcohol Reference Ranges
Low to Moderate = approximately 1 to 3 STD Drinks p/day. Excessive = approximately 4 – 6 or more STD Drinks p/day.
Find out more about our Hair Testing processes here.
Or read our hand Hair testing FAQ here.