TIPS Certification Practice Exam 2026 – Comprehensive Prep Guide

To estimate the Blood Alcohol Concentration (BAC) for a 150 lb male who drinks 8 drinks in an hour on an empty stomach, it is important to consider the Alcohol Consumption Rate and how it affects BAC levels.

The general formula used to estimate BAC is:

BAC = (Alcohol Consumed in grams / (Body Weight in grams × r)) - (Metabolism Rate × Time in hours)

Where 'r' is a constant that represents the alcohol distribution ratio in the body and varies by gender. For males, 'r' is typically around 0.68.

Firstly, understanding that a standard drink contains about 0.6 ounces of pure alcohol, we can convert ounces to grams (1 ounce = approximately 28.35 grams). Therefore, each drink contains about 17 grams of pure alcohol.

With 8 drinks consumed, the total alcohol intake would be:

8 drinks × 17 grams/drink = 136 grams of alcohol.

Next, converting the weight from pounds to grams (150 lbs ≈ 68 kg ≈ 68000 grams):

Using the formula, we get:

BAC = (136 grams / (68000 grams × 0.68)) - (0.015 × 1