Glossary
Oral fluid (saliva)
A specimen type collected from the mouth; used for recent-use detection and authorized by DOT in 2023.
Last updated:Oral fluid is collected with an absorbent collection device under direct observation. It typically detects parent drug compounds (rather than metabolites) and has a shorter detection window than urine. DOT authorized oral fluid as an alternative to urine in 2023 pending HHS lab certification.
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