What would make a healthy 22 yr old male's blood sugar to go down to 25? He ended up in ICU on a ventilator?

I was at a party and there was alcohol consumed, but i was informed that no amount of alcohol would make my blood sugar go down to 25. I've never had problems with blood sugar in the past. I had something to eat at the party along with g juice and a pina colada mixture. Wouldn't that make my blood sugar go the other way?