Liver Issue?

Maybe I'm dumb for asking this - but when it comes to medical stuff...I have NO CLUE. My bro-in-law is INSISTENT that he only had one beer (24 oz).....but he got in a wreck and had his blood alcohol level tested and was showing at a .2. That's freakishly high and one beer shouldn't put you at that high, as I understand it (not a drinker myself). I don't believe he's lying about his intake...so that makes me wonder if something could be wrong with him somehow? Someone suggested he might have a problem with his liver...but what kind of problem? Is there any medical reason his BAC would be so high when he only had one beer?

[Paderla Anitha, DNB]

Hello and hope you are doing well.

Blood Alcohol concentration (BAC)  depends on many factors. Some of these include:  a person's size, gender and physical condition; what they have had to eat; how much sleep they have had; what medications they are taking and, importantly, the actual alcohol content of their chosen drink. So, these factors could have contributed to the high value.

Hope this helped and do keep us posted.