What is alc in blood test?

Alcohol (or ethanol) level in blood test, also known as blood alcohol concentration (BAC), measures the amount of alcohol present in the bloodstream. The test is usually conducted to determine impairment levels, particularly when it comes to driving under the influence (DUI) and other alcohol-related offenses.

BAC is expressed in terms of a percentage of a person's blood supply. For example, 0.08% BAC means that 0.08% (or 0.08 grams) of a person's blood volume is comprised of alcohol.

Blood tests are one of the most accurate methods of determining BAC levels, although breathalyzer and urine tests are also commonly used. The results of a blood test can reveal information about how rapidly a person is metabolizing alcohol, how much alcohol has been consumed, and how long it will take for the body to eliminate the remaining alcohol.

In most states in the U.S., a BAC of 0.08% or above is considered legally impaired for driving. It's important to note that everyone metabolizes alcohol differently, so BAC levels can vary widely based on factors such as body weight, gender, age, and drinking habits. Therefore, it's generally recommended that people refrain from driving altogether after consuming alcohol, to avoid the risk of being charged with DUI.