What Does an EtG Alcohol Test Detect?
An EtG alcohol test screens urine for ethyl glucuronide, a substance the body produces when it processes ethanol. Unlike a breath alcohol test, which measures alcohol present at the time of testing, an EtG urine test looks for evidence of recent alcohol exposure.
EtG testing can support forensic alcohol abstinence monitoring. It does not measure blood alcohol concentration, establish current impairment, or determine exactly when or how much someone drank.
Rapid EtG Screening for Alcohol Abstinence Monitoring
Bring preliminary alcohol metabolite screening on-site with an easy-to-use urine dip test. The Healgen EtG test provides a visual result without sending every initial screening specimen to a laboratory.
For forensic programs that monitor abstinence, rapid screening can help identify specimens that need further evaluation. Use the test within a documented collection, result-review, and laboratory confirmation process.
A preliminary positive result requires confirmation with a more specific laboratory method before treating it as a confirmed finding.
Read our blog article “Best Practices: EtG Testing for Alcohol Abstinence” to understand how these tests work and what to do when you encounter a positive read result.
How Long Can an EtG Urine Test Detect Alcohol Exposure?
EtG can remain detectable in urine after ethanol itself is no longer measurable. Detection may extend for several days, and EtG testing is often described as having a window of up to 80 hours.
However, “up to 80 hours” is not a guaranteed detection period. The amount consumed, time since exposure, individual metabolism, urine concentration, and test cutoff all influence whether a specimen tests positive.
A negative result means the test did not detect EtG at or above its cutoff in that specimen. It does not prove that someone avoided alcohol throughout the previous 80 hours.
Understanding the 500 ng/mL EtG Cutoff
This test uses a cutoff of 500 nanograms per milliliter. The cutoff is the concentration used to distinguish a preliminary positive screening result from a negative result.
Compared with a lower cutoff, a 500 ng/mL threshold can reduce sensitivity to low-level incidental exposure. It does not eliminate every possibility of a positive result following exposure to alcohol-containing products.
Review results alongside collection information, possible exposure sources, and your program’s procedures. The rapid test does not report an exact EtG concentration or distinguish beverage alcohol from other sources of ethanol.
EtG Testing and Breath Alcohol Testing Serve Different Purposes
An EtG urine test helps evaluate recent alcohol exposure over a longer period. A breath alcohol test measures alcohol present when the person provides the breath sample.
Choose the method that matches your program’s purpose. EtG testing cannot establish current impairment and cannot replace required DOT alcohol testing.
Under 49 CFR Part 40, DOT alcohol testing permits approved saliva or breath methods for screening and approved breath methods for confirmation. Urine alcohol testing is not authorized.
Order EtG Alcohol Test Kits from AlcoPro
Equip your forensic testing program with rapid urine screening for alcohol metabolites. Each box contains 25 EtG test kits with a 500 ng/mL cutoff.





Sarah –
Found them at the best price. Order them fast on the website and they shipped that very day.
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Jill Davis (verified owner) –
It makes testing for alcohol so much easier and it’s fast. I also like to window of time that it gives for us to detect alcohol.
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Donald Cleveland LMHC CAP (verified owner) –
I’m on my second box with no problems. Consistent results and easy to use. Very confident about the results given various responses from patients.
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