What term refers to the measurement of alcohol concentration in the bloodstream?

The term that refers to the measurement of alcohol concentration in the bloodstream is "Blood alcohol concentration." This measurement is commonly abbreviated as BAC and is expressed as a percentage. It indicates the amount of alcohol in a person's bloodstream, which is crucial for understanding the effects of alcohol on a person's body and behavior.

BAC is particularly important in legal contexts, such as determining whether a driver is legally impaired. Understanding BAC helps bartenders and servers gauge intoxication levels and serve responsibly, contributing to safety in social environments.

Other terms, while related to alcohol, do not specifically denote the precise measurement of alcohol concentration in the blood. For instance, “Alcohol volume ratio” or “Alcohol strength measure” may pertain to the concentration of alcohol in beverages rather than its effects on the bloodstream. “Intoxication level” refers generally to the state of being impaired by alcohol but does not quantify the level as BAC does.