Author: Landon Todd

Ask the Experts

Ask the experts: Marijuana legalization and workplace drug testing

April 1, 2015 By

Marijuana impairs users when driving or completing other complex tasks even hours after use - making it vital for employers to continue to screen for marijuana.


Marijuana use associated with increased impulsivity and hostility

March 22, 2015 By

A recent study conducted by the Yale School of Medicine analyzed the changes in impulsivity and hostility of recreational marijuana users.


States and counties sue Colorado over marijuana laws

March 14, 2015 By

Several counties and states say Colorado is violating the federal Controlled Substances Act of 1970 and is burdening law enforcement in their regions.


Winter storm may cause delays

March 4, 2015 By

Due to inclement weather, FedEx has reported disruptions and shipping delays in several regions across the United States.


Name that Drug: Lifting the veil on drugs in disguise

February 18, 2015 By

DATIA focus features a regular, popular column titled, “Name that Drug." The latest edition was written by Dr. Kimberly Samano at Quest Diagnostics.

Hair testing

Detect repetitive drug use with hair testing

February 12, 2015 By

Hair testing is a method many employers rely on to help identify periodic and habitual drug use by applicants and employees.


National Impaired Driving Prevention Month

December 18, 2014 By

President Obama proclaimed December 2014 as National Impaired Driving Prevention Month.

Hair testing

Hair testing and the Drug Testing Index

December 10, 2014 By

Compared to other drug test specimen types like urine and oral fluid, hair testing is often preferred for evaluating long-term patterns of drug use.

Oral Fluid testing

Detection of recent marijuana use continues to increase significantly in oral fluid testing

November 20, 2014 By

Data from the Quest Diagnostics Drug Testing Index shows that the detection of marijuana in oral fluid has increased for the second consecutive year.


Drug test collections video

November 10, 2014 By

Our most recent video highlights our different drug test collection services and the benefits of each.