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The Kastle–Meyer test is a presumptive blood test, first described in 1903, in which the chemical indicator phenolphthalein is used to detect the possible presence of hemoglobin. It relies on the peroxidase -like activity of hemoglobin in blood to catalyze the oxidation of phenolphthalin (the colorless reduced form of phenolphthalein) into ...
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 laws of driving under the influence vary between countries. One difference is the acceptable limit of blood alcohol content.For example, the legal BAC for driving in Bahrain is 0, despite drinking alcohol being allowed, in practice meaning that any alcohol level beyond the limit of detection will result in penalties.
For example, the Kastle–Meyer test will show either that a sample is not blood or that the sample is probably blood, but may be a less common substance. Further chemical tests are needed to prove that the substance is blood. Confirmatory tests are the tests required to confirm the analysis. Confirmatory tests cost more than simpler ...
Binge drinking is defined as the amount of alcohol it takes to raise a person’s blood-alcohol concentration level to 0.08, the legal definition of being intoxicated in most states.
A suspension can occur from either the refusal to submit to a chemical test or results of 0.08 or greater alcohol concentration when a chemical test is taken. This blood alcohol concentration (0.08 grams percent) applies to drivers aged 21 and over, but a lower BAC level applies to underage drivers or any driver operating a commercial motor ...
He calculated that her blood alcohol content at 9 a.m., the time of the blood test, was between .078% and .083%, right around the legal limit for intoxication in Massachusetts.
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.