Last night around 10 pm I took one small sip of a friend's Pabst Blue Ribbon. It wasn't a mouthfull, just a small taste. Today around 2pm I took an ETG alcohol test, and I was wondering what the chances of me passing the test are? I have a lot riding on a pass, and it didn't even occur to me that that one sip might make me fail. I have not drank anything else for several weeks prior, and I am a 21 year old, 165 pound male. I probably peed 2 or 3 times between the taste and my ETG.

The ETG test is very sensitive. Using hand sanitizer can cause you to fail, using mouthwash can cause you to fail (even if you don't swallow it). Considering those two examples, it's very likely that you won't pass this test.