Medically reviewed by Steffini Stalos, DO Key Takeaways 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.

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 ...