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EtG Calculator: Alcohol Urine Test Probability

Estimate the likelihood of a positive EtG alcohol test.

What is an EtG Test?

Ethyl Glucuronide (EtG) is a direct metabolite of alcohol. Unlike standard breathalyzers that measure current intoxication, EtG tests can detect alcohol consumption up to 80 hours (3-4 days) after drinking.

Factors Affecting Detection

  1. <strong>Amount Consumed:</strong> More alcohol produces more EtG, extending the detection window.
  2. <strong>Metabolism:</strong> A faster metabolism clears EtG quicker.
  3. <strong>Hydration:</strong> Dilution can lower EtG concentration, though labs check for this via creatinine levels.

EtG FAQs

Can I pass an EtG test after 48 hours?

If you only had 1-2 drinks, likely yes. If you engaged in heavy binge drinking, EtG may still be detectable.

Does mouthwash cause a positive test?

Yes, alcohol-based mouthwash or hand sanitizers can potentially trigger a false positive on sensitive EtG tests.