Breathalyzer Tests and Breathing

"Understanding the DUI Breath Test :: Los Angeles DUI Lawyer"
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"http://video.google.com/googleplayer.swf?docid=1977096798691633948&hl=en"
type="application/x-shockwave-flash" /> A breath test for blood
alcohol results can be affected by the breathing of the DUI suspect
immediately before testing. This may increase the reading on the
breathalyser with noticeable effects. Scientists in Sweden
investigated this strange effect of symptoms
of DUI and came to some interesting conclusions. They gave
groups of men alcohol in doses considered moderate and measured
their alcohol levels using a breathalyzer. They then had the men
vary their breathing for the tests like the field
sobriety test.

The scientists concluded that if the men held their breath for
30 seconds before exhaling had the alcohol increase in
concentration by 15.7%. If, for 20 seconds, the subjects breathed
in and out rapidly, then exhaled, the level of blood alcohol
dropped 10.6%. It appeared that shallow nose breathing increased
BAC by 7.3%, and slow mouth breathing caused a 2% increase.
Choosing the right Orange
County DUI attorneys such as our DUI
defense lawyers is the first step.

It appears that the more time the air in the mouth spends
contacting the mucous membranes in the lungs and throat, the more
ethanol becomes concentrated in the breath. Scientists concluded
that a personís breathing technique should be considered an
influence on breathalyzer test results. The longer the breath was
held and contacted the mucous membranes, the higher the
concentrations of ethanol in the exhalation.

Some scientists have even come to the conclusion that changing
the technique of breathing within guidelines that are normally
required can change a subjectís BAC between 50 to 150% of the
actual BAC. This is attributed to the warming and cooling of the
breath from diverging from normal breathing patterns. All of this
can be explained by looking at the DUI detainee breathing in cool
room temperature air. This air lowers the temperature of the
airways and expels some of the alcohol.

As the suspect continues to breathe in and out, the airways get
warmer and more of the alcohol is evaporated at the surface of the
airways. Therefore, the more a suspect holds his or her breath, the
more the last portion of the suspectís breath obtains more
alcohol and results in a false reading, abnormally high. The bottom
line of the research is that breathalyzer tests are, by their
nature unreliable. Scientists have concluded that no breath test
analyzer can take a breath sample and not have it change.

Think about it, you have to either breathe fast or hold your
breath just before giving a sample. This, according to scientists,
will change your BAC reading on a Breathalyzer. Scientifically
speaking, the manner in which the sample is collected leads to
inherently unreliable results. Since there is no control over the
amount of breath collected, the test is discriminatory when it
comes to people who breathe deeper than others before exhaling.
Thus, the test is inaccurate.

You probably didnít know this when you agreed to give a
breath sample. This is why you need to contact the Orange County
DUI Defenders as soon as possible. The longer you wait, the harder
it is to refute the evidence against you. Donít delay, get the
team at the
Orange County DUI Defenders on your side now. Call
1-888-400-9721 now and get the best possible
defense on your side. We are also renowned Los Angeles personal injury
lawyers.