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Blood alcohol content (BAC), also called blood alcohol concentration or blood alcohol level, is a measurement of alcohol intoxication used for legal or medical purposes. [1] BAC is expressed as mass of alcohol per volume of blood. In US and many international publications, BAC levels are written as a percentage such as 0.08%, i.e. there is 0.8 ...
The concentration of alcohol in blood is measured via blood alcohol content (BAC). The amount and circumstances of consumption play a large role in determining the extent of intoxication; for example, eating a heavy meal before alcohol consumption causes alcohol to absorb more slowly. [1]
Promille and permille are likely best known as shorthand terms for Blood Alcohol Concentration, where 1 promille corresponds to 1 gram of alcohol per liter of blood. [8] Promille is used in the legal limits of blood-alcohol content for driving a road vehicle in some countries: for example: 0.5‰ or 0.8‰. [9]
Drunk driving is the act of operating a motor vehicle with the operator's ability to do so impaired as a result of alcohol consumption, or with a blood alcohol level in excess of the legal limit. [1] For drivers 21 years or older, driving with a blood alcohol concentration (BAC) of 0.08% or higher is illegal.
The U.S. Centers for Disease Control and Prevention (CDC) estimates that nearly 40% of falls involve alcohol and at least a blood alcohol concentration of 0.10%.
The National Transportation Safety Board recommended all new U.S. vehicles be equipped with blood alcohol monitoring to cut down on drunk driving in a report released Tuesday.
A toxicology screening ordered as part of the month-long investigation indicated Chao, 50, had a blood alcohol concentration of 0.233. The legal limit to drive in Texas is 0.08.
Some effects of alcohol intoxication, such as euphoria and lowered social inhibition, are central to alcohol's desirability. [21] As drinking increases, people become sleepy or fall into a stupor. At very high blood alcohol concentrations, for example above 0.3%, the respiratory system becomes depressed and the person may stop breathing. [22]