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How long does alcohol stay in your urine?
But alcohol byproducts, like ethyl glucuronide (EtG), can be detected in urine for up to 3 days after a person鈥檚 last drink. Other lab tests might also test urine for ethyl sulfate (EtS). EtS is another type of metabolic substance that detects alcohol in a person鈥檚 system.
What is the alcohol content of urine?
Urine alcohol content is sometimes used to estimate a person鈥檚 blood alcohol content. The amount of alcohol in a person鈥檚 urine is approximately 1.33 times greater than the amount of alcohol in their bloodstream. For accuracy, at least two urine samples are usually collected 30 minutes to an hour apart.
Does alcohol show up in a urine test?
However, the amount of alcohol present in the urine is typically greater than the levels of alcohol in the bloodstream. This can sometimes lead to tests that conclude a person drank more alcohol than they actually consumed. For the most accurate results, collect at least two urine samples around 30 minutes to 1 hour apart.
How much alcohol is excreted from the body?
A tiny amount is expelled through a person鈥檚 breath and sweat. The remaining 1 to 2 percent is excreted in the urine. Alcohol will usually show up in a person鈥檚 urine within an hour of drinking, and it usually remains detectable for up to 12 hours.