Drug tests only check for drugs. Alcohol tests only check for alcohol. But impairment on-the-job has many causes.
Unlike impairment due to drugs or alcohol, impairment due to fatigue, illness, chronic condition or injury, such as concussion, cannot be determined by measuring the presence of an impairing substance in bodily fluids – blood, urine or sweat.
For some drugs, particularly marijuana, testing for its bodily presence just doesn’t work. Marijuana causes impairment for an hour or two, but remains in your system for three weeks or more. During that time, it has no impairing effect. A test for its bodily presence is not useful to determine an employee’s fitness for duty because it does not measure impairment.
Druid doesn’t test for substances in bodily fluids. It measures neurophysiological indicators, like reaction time, hand-eye coordination, decision-making and balance. Druid tests for impairment, regardless of cause. And testing generally for impairment, as Druid does, is the comprehensive way to ensure individual, workplace and public safety.