Back to basics: Hair drug testing webinar

Our experts untangle the science behind the testing type with the longest drug detection window

The new age of marijuana white paper

Providing insight on the value of drug testing in the ever-changing marijuana legislation landscape

Latest Quest Diagnostics Drug Testing Index brochure

Workforce drug testing positivity climbs to its highest rate since 2004

Quest Diagnostics Drug Testing Index webinar

Our scientists discuss the latest workplace drug testing data

Back to basics: Oral fluid drug testing webinar

Our Scientific Director shares her expertise about the accuracy and versatility of oral fluid testing

Back to basics: Urine drug testing webinar

Learn more about the most commonly used drug test specimen type

Opioid crisis and the workplace white paper

Educating employers about the impact of opioid misuse on the American workforce and economy

Industry-specific workplace drug testing data

Workforce drug positivity rises by double-digits in almost one-third of U.S. industry sectors examined