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Research indicates that breath tests can vary at least fifteen percent from actual blood alcohol concentration. The alcohol breath test may be higher than their true blood alcohol. These reading can be used in court as evidence.
No, but it can sometimes lead to a falsely high BAC reading on an alcohol breath testing machine.
Breath alcohol level refers to the amount of alcohol vapor in the breath. Alcohol is excreted into the lungs from the blood in a fixed proportion to the amount in the blood. Therefore, measuring breath alcohol gives an indirect, but accurate, measurement of the amount of alcohol in the blood, and the degree of impairment to brain function.
No. An alcohol breath test is only an estimate of the actual blood alcohol concentration, which can only be determined by drawing and analyzing a sample of blood.
Blood alcohol concentration is measured by means of blood tests. It is estimated by means os alcohol breath machines.
Blood alcohol level is determined using blood, breath, urine, or saliva tests. Most law enforcement agencies use the breath testing method to determine blood alcohol level.
Blood is always more accurate as it is a direct test - breath is indirect.
If you breath or have a blood alcohol level of .08 your license will be suspended.
A blood test is the only way to measure blood alcohol concentration accurately. Alcohol breath testers (Breathylizer, etc.) actually only estimate the blood alcohol concentration.
The temperature at which breath leaves the mouth is=normally 34 degrees Cellsius==At this temperature, experimental evidence has shown that the==ratio of alcohol in the blood to alcohol in alveoli air is==approximately==2,100 to 1==1 ml of blood will contain nearly the same amount of alcohol as 2,100 ml of alveoli breath=The temperature at which breath leaves the mouth is=normally 34 degrees Cellsius==At this temperature, experimental evidence has shown that the==ratio of alcohol in the blood to alcohol in alveoli air is==approximately==2,100 to 1==1 ml of blood will contain nearly the same amount of alcohol as 2,100 ml of alveoli breath=
Blood Alcohol Content BAC 0.10.
While I am not a physician, I honestly can't see how it could have any impact.There's a little complication here: hypothermia CAN change the breath alcohol reading; there have been a couple of papers published showing that mild hypothermia can cause a breathalyzer to read noticeably higher (about 20% higher) than it should based on the actual blood alcohol concentration. However, the same study found that it had no impact on the blood alcohol decay curve.If you're hoping to get out of a DUI this way, from a legal standpoint it doesn't really matter WHY your blood alcohol concentration was over 0.08%, it only matters THAT your blood alcohol concentration was over 0.08%. If it was a breath test only, you might be able to argue that you read higher than you should have because you were cold. If they actually took a blood sample, then the concentration was what it was and you're pretty much hosed.