Data: Fentanyl positivity 7x higher in random workplace drug tests than in pre-employment tests

A new report from Quest Diagnostics, a diagnostic testing and health information services provider, revealed that the ...
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Truly random drug testing: Some patients must drug test often, while others are never asked

Add Yahoo as a preferred source to see more of our stories on Google. Some adults who take prescription medication for attention-deficit/hyperactivity disorder are ...