The Role of the Medical Review Officer (MRO) in Workplace Drug Testing
An essential component of any drug testing program is a comprehensive final review of laboratory results, which includes review of appropriate documentation, as well as an interview with the donor of the specimen to discover whether or not an acceptable medical explanation exists for the laboratory result.
A confirmed positive test result reported from a laboratory does not automatically identify an employee or job applicant as having misused drugs, nor does a laboratory result of invalid, substituted, or adulterated automatically identify a person as having tampered with a specimen.
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