Category: Urine testing

6 highlights from our urine drug testing webinar
We kicked off our three-part webinar series, Back to basics, focusing on urine drug testing. Read six highlights from the webinar surrounding best practices for collections and laboratory processes that help to ensure an accurate urine drug test. Continue reading

By   /  February 28, 2019

Back to basics webinar series: urine drug testing
In our upcoming webinar series, Back to basics: urine drug testing, Mark Haworth and Charlie Sullivan, answer common questions about urine drug testing. Continue reading

By   /  February 5, 2019

States move to ban synthetic urine
Synthetic urine has become a popular means of attempting to elude a positive drug test result, considering it often contains uric acid, a chemical naturally found in urine. Continue reading

By   /  May 4, 2018

NLCP guidance on invalid specimens
HHS-certified laboratories reported a significant increase in the number of urine drug test specimens that were reported as invalid in the second half of 2017. Read the NLCP notice. Continue reading

By   /  March 26, 2018

Clarifying the changes in federal workplace drug testing & documentation
Changes to the federal drug testing panel and paperwork are forthcoming, but for now you should continue testing as usual. Continue reading

By   /  November 10, 2017

Combating cheating in urine drug testing
Employers need a variety of tools at their disposal to help thwart drug test cheaters as they work to maintain drug-free workplaces. Continue reading

By   /  July 18, 2016

Detecting drug abuse among medical professionals
Organizations can add a comprehensive drug testing program to their efforts to protect the health and safety of both patients and medical staff. Continue reading

By   /  July 6, 2016

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