blood alcohol concentration


Also found in: Dictionary, Thesaurus, Legal, Acronyms, Encyclopedia, Wikipedia.

blood alcohol concentration

n.
The concentration of alcohol in the blood, expressed as the weight of alcohol in a fixed volume of blood and used as a measure of the degree of intoxication in an individual. The concentration depends on body weight, the quantity and rate of alcohol ingestion, and the rates of alcohol absorption and metabolism. Also called blood alcohol level.

blood alcohol concentration

The serum levels of ethanol in a person who has imbibed alcohol. US federal mandate defines 80 mg/dL as legal intoxication; rest of world 17.4 mmol/L.
 
Useful values
> 200 mg/dl, narcosis; > 300 mg/dL, stupor and coma.

blood alcohol concentration

Blood alcohol level Clinical chemistry The serum levels of ethanol in an individual who has imbibed same; U.S. federal mandate has defined 80 mg/dL as legal intoxication

blood alcohol concentration

Abbreviation: BAC
The weight of ethanol in a fixed volume of blood, usually expressed in the U.S. in mg/dl. Concentration depends on quantity, the rate of alcohol ingestion, metabolism, and alcohol absorption rates. BAC is used to measure the degree of a person's intoxication. The alcohol level at which a person is considered legally impaired varies by country and state.
Synonym: blood alcohol level
See also: concentration
References in periodicals archive ?
Sales' attorney filed a motion to suppress the breath test on the basis of the language problem, noting that the law said the test result should be expressed as previously mentioned, "the numerical blood alcohol concentration value it reports shall be in units of percent by weight (%weight/volume) of alcohol in blood," whereas the breathalyzer itself issued a printout that read "grams of alcohol per 210 liters of breath."
Blood samples were collected for Serum Blood Alcohol Concentrations (BAC) in all 100 patients.
Drivers who pass all three tests will only be apprehended for their traffic offenses while those who fail any of the three will be subjected to the alcohol breath analyzer test, which accurately determines their blood alcohol concentration level.
Blood alcohol concentration and microencephaly: A dose-response study in the neonatal rat.
In this material, the so-called Widmark formula is used to calculate the blood alcohol concentration (B[A.sub.C]) after consumption of alcoholic drinks.
They analyzed responses from 98 general trauma surgeons around the country and found that less than half reported routinely measuring blood alcohol concentration among their patients even though 91% of respondents said it was important to do so.
Using one of several alcohol screeners, made by Q3 Innovations, school administrators and staff can test the blood alcohol concentration of a student quickly and accurately.
A selection of chapter topics includes blood alcohol concentration, handling peer pressure, alcohol poisoning, suicide and depression, violence and drinking, and coping with an alcoholic parent.
The blood alcohol concentration level for driving is currently 80mg per 100ml of blood in the UK, compared to 50mg elsewhere in Europe.
In the new NHTSA data, the median blood alcohol concentration (BAC) value for alcohol-involved drivers was 0.16 BAC, which means more than half of all alcohol-involved drivers had a BAC higher than twice the legal limit in most states.
Before drivers are allowed to turn on the ignition they have to take a breath test in order to check their blood alcohol concentration (BAC).
* sleep a minimum of 8 hours in every 24 ("a person kept awake for 17 hours will perform at a standard comparable to that of someone with a blood alcohol concentration (BAC) of 0.05 percent.