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blood alcohol concentration Tag

28 March
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Blood Alcohol Concentration (BAC) and DUI

Posted by Clint
in Blog
Blood Alcohol Concentration (BAC) and DUI

Blood alcohol concentration (BAC) greatly affects driving under the influence (DUI) or driving while impaired (DWI) charges. If you have been arrested for one of these charges, you should understand why BAC matters. What Is Blood Alcohol Concentration? BAC refers to the percentage of alcohol in a person’s blood stream. Specifically, BAC measures ethyl alcohol or ethanol. If someone has a BAC of 0.10, this means that the person’s blood supply contains one part alcohol per every 1000 parts blood. When someone is arrested for DUI or DWI, the police do a breath or blood test. Both tests are supposed to measure the...

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28 March
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New Report Recommends 0.05 BAC Limit

Posted by Clint
in Blog

A new report encourages states to adopt a 0.05 blood alcohol concentration limit for drivers accused of driving under the influence. In a study sponsored by the National Highway Traffic Safety Administration, a non-profit group called the National Academies of Sciences, Engineering, and Medicine examined drunk driving fatalities over the past 30 years and the costs associated with enforcement of DUI laws. The National Academies concluded that lowering the BAC limit – making it easier for drivers to be arrested – and changing a host of strategies for combatting drunk driving would lower fatalities. This latest report is far from the...

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23 February
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The Science Behind Blood Alcohol Urine Tests

Posted by Clint
in Blog
The Science Behind Blood Alcohol Urine Tests

Along with breath and blood tests, urine tests can be used by law enforcement officers to measure blood alcohol levels. Scientists have found that urine tests inaccurately measure concentrations of ethanol, but they do show whether alcohol is present. Urine tests can be unreliable for a number of other reasons, but law enforcement continues to use them as an alternative to the more typical breath and blood tests. Urine tests also can show the presence of other drugs besides alcohol. Like for blood testing, laboratories use gas chromatography-mass spectrometry (GC-MS) to detect ethanol levels in urine. Technicians run a sample through...

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13 October
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There Is No Reliable Test for DUI Marijuana

Posted by Clint
in Blog
There Is No Reliable Test for DUI Marijuana

It’s true: there is no reliable test for DUI marijuana. While police can observe drivers for signs of impairment, no blood or breath test can show accurately whether a person is so impaired by marijuana as to make driving unsafe. The reason marijuana concentration in the body cannot be tested reliably lies in science. The ethanol in alcohol dissolves in water, and human bodies are mostly water. Ethanol concentration in the body reduces quickly over time. In contrast, the THC in marijuana is fat-soluble and does not dissolve in water. It can remain in the body for weeks. A recent study...

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