Estimated BAC = _.
A) number standard drinks (.025%) - number hours since drinking began (.015%)
B) number standard drinks (.015%) - number hours since drinking began (.025%)
C) number hours since drinking began (.025%) - number standard drinks (.015%)
D) number hours since drinking began (.015%) - number standard drinks (.025%)

Question

Quizplus · Accepted Answer

The formula for estimating BAC is based on the number of standard drinks consumed and the time elapsed since drinking began. The BAC decreases over time as alcohol is metabolized by the body. Therefore, the correct formula should subtract the product of the number of standard drinks and the elimination rate (.015%) from the initial BAC level (.025%) determined by the number of standard drinks consumed. The correct formula is thus: Estimated BAC = number of standard drinks x .025% - number of hours since drinking began x .015%. Choice A matches this formula.