Urine tests can detect alcohol or alcohol metabolites for 12 to 24 hours after drinking, though advanced tests may detect metabolites up to 80 hours after heavy use. Ethyl glucuronide (EtG) and ethyl ...

Proof is a measure of the alcohol content of a beverage. In the U.S., policymakers define proof as twice the percentage of alcohol by volume (ABV). For example, a drink with 40% ABV is 80 proof.

Alcohol breath tests, commonly called breathalyzers, measure blood alcohol content (BAC). The more intoxicated a person is, the higher their BAC. This test is often used by law enforcement to ...

An alcohol urine test involves a lab testing a person’s urine sample for the presence of alcohol. Three types of this test exist. One measures unmetabolized alcohol, while the others measure two of ...