Tag: Dr. Barry Sample

Ask the Experts

Ask the experts: Secondhand marijuana smoke

May 11, 2021 By

Can you fail a drug test from secondhand smoke? There are no published, peer-reviewed studies to date that indicate someone would test positive on a drug test due to incidental exposure of marijuana smoke. Learn more from Dr. Barry Sample, Quest Diagnostics.

News

Challenging the poppy seed defense

April 13, 2021 By

A Quest Diagnostics study helps to answer the question: Can eating poppy seeds produce a positive drug test for a job applicant or employee?

Hair testing

Ask the experts: Effects of hair treatments on drug test results

April 6, 2021 By

Our scientific expert, Dr. Barry Sample, answers the question: Can products and treatments affect hair drug test results?

News

Drug use rises again in the American workforce

August 25, 2020 By

Drug positivity in 2019 hit a 16-year high in the US workforce, according to the latest Quest Diagnostics Drug Testing Index.

Ask the Experts

Webinar: COVID-19 and the Workplace

May 5, 2020 By

Scientists from Quest Diagnostics presented a webinar called, “Ask the experts: COVID-19 and the Workplace." Watch a recording on-demand.

Hair testing

What you need to know about hair drug testing

March 31, 2020 By

Employers choose hair testing to help identify habitual and periodic drug users using its 90-day drug detection window. Get the facts.

Oral Fluid testing

New oral fluid guidelines for Federal testing

November 21, 2019 By

SAMHSA published scientific and technical guidelines for the inclusion of oral fluid specimens in federal testing. Find out what employers need to know.

News

Workforce drug positivity increases in more than one-third of U.S. industry sectors examined

September 11, 2019 By

One third of U.S. industry sectors experienced year-over-year double-digit increases in workforce drug positivity between 2015 and 2018.

News

DATIA focus: Drug use in America climbs in customer-facing industries

April 15, 2019 By

Drug use by the US workforce increased each year - and by double-digits over 2 years - between 2015 and 2017, in 5 of 16 major US industry sectors analyzed.

Drug Testing

Federal drug testing expanded opiate panel impacting positivity

September 13, 2018 By

The dangers associated with opioids misuse are likely elevated based on a testing population that includes drivers, pilots, and other safety-sensitive roles.