Oral drug testing, also known as mouth swab, oral fluid, or saliva drug testing, is a relatively new method to test for recent use of drugs. It is excellent for maintaining a drug free workplace, testing on a pre-employment, random, post-accident, or reasonable suspicion basis.
This type of drug testing is just as accurate as urine drug testing; however, it may sometimes be difficult to collect a sample due to reduced fluid caused by physiological factors, including drug use itself. Food and techniques designed to stimulate production of oral fluid can also affect the concentration of drugs.
Oral drug testing is still an ideal drug testing method where gender-neutral collection is needed, it can identify alcohol and most common drugs, and it can be conducted under direct observation.
This type of drug testing is quick and simple, but is not allowed for DOT and other federally mandated tests.
It’s important to note that while a positive oral drug test does not necessarily mean that an individual was under the influence of drugs at the time of the test, it has become the standard for evidence of “current use” for the U.S. Department of Labor.