Hair Testing For Drug Use Gains Traction -- But Critics Say The Science Needs To Catch Up
11/1/2016 7:00:04 AM
The findings made headlines when they came out recently — more Americans failing workplace drug checks than at any time in the last decade.
Quest Diagnostics’s report in September that workforce drug use had reached a 10-year high came from an analysis of more than 10.5 million drug tests that the company conducted for employers in 2015. Most of those tests used urine or saliva. But 200,000 tests were performed on hair, and those tests showed the greatest increase, the report found.
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