If you're using an oral drug test kit, make sure it includes an indicator. Saliva screening tests can detect substances as fast as a urine drug screen; these tests contain built-in panels that react to drug metabolites in saliva specimens.
When you opt for a saliva collection device with a color indicator, the indicator color change will notify the donor that enough saliva has been collected to run the test without error. Many oral fluid devices lack this special feature, so it is important to choose an oral fluid drug test kit that can make sure there is a smaller risk of false results due to insufficient specimen collection.
Compared to other drug testing methods, oral fluid testing is an easiest method to the administer; no bathroom is required to collect a specimen, and little training is required to increase accuracy.