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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).
With the EtG Urine Alcohol Test, however, the presence of EtG in the urine reveals that ethanol alcohol was consumed within the past 80 hours or so which could mean many hours after the ethanol alcohol has been metabolized by the body. Thinking about this reveals the following. No, the EtG Urine Alcohol Test cannot tell how much alcohol an individual consumed, but it can, nonetheless, detect alcohol ingestion after the alcohol has been metabolized by the liver.