Employment drug testing is in practice in most companies presently. Pre-employment drug testing and random drug testing are the most common types of drug testing in the workplace. Various kind of samples including urine, blood, saliva, hair and sweat can be used for performing employment drug testing.
The University of Utah’s Center for Human Toxicology (CHT) in Salt Lake City conducted a multi year study. It revealed that detection of illegal drugs in saliva is possible. Using saliva drug test is gaining more requirement by various companies to perform employment drug testing. The saliva drug test lessens the privacy problem as it is done only by collecting the sample from an employee’s mouth by placing a swab that looks like a toothbrush. Another advantage of using this method is that it can detect the most recent drug usage. The sample collected from this test contains more amount of the original drug instead of its metabolites. Most of the drugs get evaporated within 12-24 hours after use in saliva drug test. It is preferred to use this test in post accident drug testing cases.
The National Institute on Drug Abuse (NIDA) sets guidelines for drug free workplace programs along with SAMHSA. NIDA-5 that includes Phencyclidine, opiates, amphetamines, cannabinoids and cocaine are the most commonly used drugs that are tested during employment drug testing. Saliva drug test is able to detect the NIDA-5 drugs.
Detection of drugs through saliva tests interests prison, the law enforcement and testing communities as it is an easy and clear liquid that can be used with conventional drug screening techniques.