I am 55 year old female. 5'8 190 lbs. I drank 10 beers. 12 oz. 4.2 alcohol content on Sunday from 12-8 pm. Got an EtG test 65 hours later. Drank a little extra water. Will I pass?

Probably

Or maybe not. But you knew that was a risk when you did it.

Maybe.

No idea. If I were to guess, I'd say fail based on the amount you had to drink, and the time in between your last drink and the test. But that's just a guess.

What is the cutoff or what is reason behind the test?