Tag: specimen validity testing
3 Ways Cheaters Cheat
A drug testing program is only as good as its safeguards. Learn some of the most common ways people try to cheat a drug test and how to stop the cheaters.
A Closer Look: Series introduction
A new year brings new beginnings. That said, we are excited to introduce our new blog series called A Closer Look.
Add certainty with specimen validity testing
Quest Diagnostics offers specimen validity testing with varying levels of quality assurance to help ensure the integrity of a urine drug test.
How donors cheat drug tests
The use of oxidizing adulterants is one of the most common ways donors try to cheat a urine drug test. Our chart shows different kinds of adulterants.
Quest comments for oral fluid mandatory guidelines
HHS published Oral Fluid Mandatory Guidelines which opened a 60-day comment period. Here are our comments in response to the questions posed by HHS.
New to drug testing: Specimen validity testing
Collectors keep donors from contaminating specimen, but also take measures at the laboratory to help ensure that your test results are accurate.
