Oral fluid alcohol testing reflects recent alcohol consumption, typically within the past 12-24 hours, depending on dose. Gas chromatography with headspace sampling and flame ionization detection provides accurate, specific measurement.
This test is used in workplace and forensic settings, addiction treatment monitoring, and clinical situations where recent alcohol use needs documentation. Oral fluid sample collection under observation is less invasive than blood and harder to tamper with than urine. Sample type is oral fluid.