You've probably heard I didn't know I was pregnant stories that went something like this: A woman claims she took an at-home pregnancy test that came back negative, but, lo and behold, she really was pregnant -- and the pregnancy progressed without her knowledge.
Carbonation in anything you drink allows it to enter the bloodstream faster. There is no difference with an alcoholic beverage. If you drink alcohol that is either carbonated or mixed with a carbonated beverage, then it will absorb into the bloodstream faster than drinks that are not carbonated. Examples are cocktails such as Jack and Coke, which is whiskey mixed with Coca-Cola.
Alcohol absorption is affected by your size, gender, how much you drink, and how fast you drink.3,5 The more alcohol you drink, the more rapidly the body absorbs it. Likewise, BAC rises faster if you drink a certain amount of alcohol all at once rather than over a long period of time.