Alcohol can be detected in urine for up to 72 hours after heavy use. Ethyl glucuronide (EtG) tests can show alcohol use up to 80 hours later. Exposure to products like mouthwash can affect test ...

Urine tests can determine whether you have consumed alcohol within the last 24 hours. Alcohol has a relatively short life span in the body, but a urine test can detect alcohol long after its effects ...