I drank one beer yesterday at 6:00pm how long do I need to pass an EtG

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Originally Posted by blg27

i drank one beer yesterday at 6:00pm how long do i need to pass an etg

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Somewhere between 13-20 hours.

As example see CLINICAL & FORENSIC TOXICOLOGY NEWS tested at 18.5 hours.

Thanks so I should be good at 24 hours then

I know of no instance where one beer (14g pure alcohol) has tested EtG positive above 21 hours.

What if subject has pbh, concerned bladder is not clearing completely? Assume 1 beer(4.2%), test 36 hours from 0 bac. The question may be, how long EGT lives after 21 hour threshold described above if not flushed completely.