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1 Hair alcohol tests detect alcohol use over a longer period of time than any other type of alcohol testing protocol (for instance, hair tests for alcohol can provide accurate test results regarding alcohol use going back months or even years).
Urine Alcohol Testing. Urine alcohol tests (also known as EtG tests) can be performed alone or with another drug test using the same sample. Ethyl Glucuronide (EtG) is a metabolite of ethanol (drinking alcohol) that is detectable in the urine for up to three days after the last ethanol use.rine Alcohol Testing. Urine alcohol tests (also known as EtG tests) can be performed alone or with another drug test using the same sample. Ethyl Glucuronide (EtG) is a metabolite of ethanol (drinking alcohol) that is detectable in the urine for up to three days after the last ethanol use.