Ethylglucuronide (EtG) in Urine

What Does This Test Measure?

Ethylglucuronide (EtG) is formed when your body processes alcohol. Unlike traditional alcohol tests, which check blood or saliva for alcohol itself, this test looks for EtG, which remains in the urine for a longer period after drinking. This makes it useful for detecting alcohol use that may not be detected by other methods.

Why Might You Need This Test?

Doctors may order this test if you’re suspected of recent alcohol misuse, especially in cases where other tests (like blood alcohol levels) are inconclusive. It can also be used in workplace or legal settings to assess alcohol exposure over a longer timeframe.

Sample Collection and Preparation

You’ll provide a urine sample, typically collected in a sterile container. The lab will analyze it using a sensitive method to detect even small amounts of EtG. No special preparation is needed, but avoid drinking alcohol for about 24 hours before testing if instructed.

Interpreting Your Results

Results are usually reported as either positive or negative for EtG. A positive result indicates recent alcohol consumption, while a negative result suggests no detectable alcohol metabolite in your system. Interpretation depends on clinical context, such as the reason for testing.