Category: Urine testing

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. Continue reading

By   /  December 18, 2015

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. Continue reading

By   /  December 16, 2015

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

By   /  October 16, 2015

Oxycodones positivity declines for the second consecutive year
The latest data from the Quest Diagnostics Drug Testing Index reports that the positivity rate for prescription opiates declined 8.3% in 2013. Continue reading

By   /  November 6, 2014

Ask the experts: Urine – the ‘gold standard’ of drug testing
Businesses who take part in drug-free workplace programs need flexible testing methods and lab-based urine drug testing offers robust panels. Continue reading

By   /  August 28, 2014

Revised urine specimen collector guidelines
ODAPC issued an official Q&A document that clarifies collector guidelines outlined in 49 CFR Part 40. Continue reading

By   /  July 3, 2014

Drug test options beyond the urine cup
Experts Barry Sample, Ph.D. and Bill Current discussed alternatives to lab-based urine drug testing and answered questions in our August 22 webinar. Continue reading

By   /  August 26, 2013

Experts explain drug testing options
Our webinar features leading authorities on drug testing and in this webinar they will discuss alternatives to lab-based urine testing. Continue reading

By   /  August 16, 2013

Beyond the urine cup webinar
Join our experts for an insightful webinar, "Beyond the Urine Cup: Experts Explain Drug Testing Alternatives," on Thursday, August 22 at 1 p.m. CT. Continue reading

By   /  July 18, 2013

Webinar: Worth the wait? Instant vs. lab-based drug testing
Instant drug testing is one of several terms used to describe a testing method that yields an immediate result where the drug test is administered. Continue reading

By   /  May 31, 2013