Measures of Alcohol Levels

Measures of alcohol concentration (in breath and blood) are important when screening for alcohol use in occupational and other settings. They are useful indicators in emergency departments and in outpatient clinics to confirm recent alcohol use and to assess suspected intoxication. Alcohol breath tests are less invasive and are widely used in roadside testing. The correlation between alcohol concentrations and intoxication may be affected by a range of factors, including tolerance, and may require careful clinical interpretation.