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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).
Samples and results for each use are usually collected and tested separately. Medical: medical testing is used to determine the level of ethanol in the blood in order to effectively treat the intoxicated person's symptoms. Blood is the most common sample used for medical alcohol tests.