ServSafe Alcohol Practice Exam

A 100-pound woman drank three 5-ounce glasses of wine in one hour. What is her approximate BAC?

1. .089

2. .119

3. .141

4. .157

The correct answer is: .119

To determine the approximate blood alcohol concentration (BAC) for a 100-pound woman who consumed three 5-ounce glasses of wine in one hour, it's important to understand the factors affecting BAC calculations. First, we need to consider that a standard 5-ounce glass of wine typically contains about 0.6 ounces of pure alcohol. Since the woman consumed three glasses, she ingested approximately 1.8 ounces of pure alcohol (3 glasses x 0.6 ounces). When calculating BAC, the Widmark formula can be utilized: BAC = (Alcohol consumed in ounces / (Body weight in ounces x r)) x 100 Here, "r" is the alcohol distribution ratio. For women, "r" is approximately 0.55. To convert the woman's weight from pounds to ounces, we multiply by 16. So, her weight in ounces is 1600 (100 pounds x 16 ounces). Now, inserting the values into the formula: BAC = (1.8 / (1600 x 0.55)) x 100 This results in a BAC around 0.119, which is consistent with the calculated estimates for such consumption over an hour. This value indicates that the option representing approximately .119 is