Depending on the drug test administered, results can take anywhere from 24 hours to a few days.
To ensure the accuracy of the drug testing services, the samples will be sent to an HHS-certified laboratory. A Medical Review Officer (MRO) – a licensed physician trained in substance use disorders – will interpret the test results along with the employee’s medical history and other relevant information.
After the MRO reviews the samples, they will submit the results to the employer.
Negative results indicate that the employee has not consumed alcohol or illicit drugs in the recent past, while a positive test result does indicate some form of recent substance use.
If the tests indicate positive use of substances, the employee may be referred for treatment, rehabilitation, or disciplinary action.
Employees of safety-sensitive industries (such as the Department of Defense or Department of Transportation) who test positive for substances in their sample have the right to get their sample tested by another HHS lab to eliminate the possibility of a false positive.