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Oklahoma DUI Breath Test

Breath tests are the most common form of testing used to determine blood alcohol content (BAC) in Oklahoma. These tests will usually be performed roadside -, and don't require a medical professional to administer.

How the Breath Test Works

The State of Oklahoma uses the Intoxilyzer 8000 for breath testing during the course of a drunk-driving arrest. To administer the test, the officer will ask you to blow into a tube until told to stop. The machine then uses infrared spectrometry to analyze the breath sample. Essentially, the machine produces light wavelengths, which are absorbed if any alcohol or alcohol-like compounds are present.

After measuring the alcohol molecules, the Intoxilyzer will use a breath-to-blood ratio of 1:2100 to calculate the amount of alcohol that is in your bloodstream. Unfortunately, this ratio is not correct for every person, as each person’s body reacts differently to alcohol.

Breath Tests Aren't Always Accurate

Although a breath test is a more accurate form of measurement than a field sobriety test, the Intoxilyzer 8000 is not always right. While the breath test is supposed to measure air from the deep lungs, mouth alcohol—that is, alcohol trapped by food or dental work—can inflate the test results. Other compounds can also be mistaken for alcohol. For example, diabetics or those on low-carbohydrate diets can produce compounds during ketosis that can be confused with the alcohol that you drink.

Attorney Bruce Edge knows firsthand the problems with the State's breath test; he even owns his own Intoxilyzer 8000 unit, which he uses when developing defenses for his clients. For advice on your breath test results, please complete our online form or call (877) DUI-EDGE or (918) 582-6333 to schedule a free initial consultation.



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