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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).
An individual with a blood alcohol content level of .08 will have no measurable alcohol in the bloodstream roughly 5.33 hours after the last drink (.08 divided by .015 = 5.33). With some urine alcohol tests, alcohol can be detected up to approximately 48 hours after an individual has consumed alcohol.o, the EtG Urine Alcohol Test cannot show how much alcohol a person ingested, but it can, by way of comparison, detect alcohol consumption after the alcohol has been metabolized by the body.