Blood alcohol content

Blood alcohol content
Ethanol
SynonymsBlood alcohol concentration, blood ethanol concentration, blood alcohol level, blood alcohol
LOINC5639-0, 5640-8, 15120-9, 56478-1

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 grams of alcohol per liter of blood.[1][2] In different countries, the maximum permitted BAC when driving ranges from the limit of detection (zero tolerance) to 0.08% (0.8 g/L).[3][2] BAC levels above 0.40% (4 g/L) can be potentially fatal.[1]

  1. ^ a b c "Blood Alcohol Level". MedlinePlus. National Library of Medicine. 3 December 2020. Archived from the original on 27 May 2023. Retrieved 25 December 2019.
  2. ^ a b "Legal BAC limits by country". World Health Organization. Archived from the original on 19 February 2015. Retrieved 12 November 2023.
  3. ^ "Drink-drivers in Nepal face the 'smell test' crackdown". Yahoo News. 22 July 2012.
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