MRO Practice Questions and correct answers| Updated 2026

MRO Practice Questions and correct answers| Updated 2026 2. Which of the following drug tests is not required for federal employees under the federal Drug-Free Workplace Program? A.Preplacement B.Post-accident C.Return to duty D.Unreasonable suspicion E.Random D SAMHSA's Drug Free Workplace Program specifies "Reasonable Suspicion" as one of the types of drug testing. This is found on the federal Custody and Control Form. The incorrect answer was unreasonable suspicion. 3. Which of the following is the "weakest link" in drug testing, i.e., generally produces the most frequent errors? A.Specimen collection B.Laboratory testing C.MRO review A Among drug testing personnel, there are far more specimen collectors than laboratory staff or MROs. Collectors receive the least amount of training, are paid the lowest wages, and have the highest job turnover. Quality reviews show that a substantially larger number of errors occur in collection and properly completing the Custody and Control Form. 4. MROs must pass a nationally recognized certifying examination for which of the following activities? A.All MRO work B.All federally regulated MRO work C.All DHHS and DOT MRO work D.All states with provisions allowing medical marijuana C A. All MRO work - Incorrect: includes non-federally regulated drug testing, in which only a handful of states require MRO certification B. All federally-regulated MRO work - Incorrect: includes DOD, NRC and other agencies, which do not require MRO certification C. All DHHS and DOT MRO work - Correct Answer: Both SAMHSA and DOT clearly specify this requirement for MROs. D. All states with provisions allowing medical marijuana - Incorrect: state Marijuana laws make no reference to MROs, and only allow medical authorization or recommendation permitting marijuana use. Health care professions do not "prescribe" marijuana. 5. Which of the following roles is primary for the MRO? A.Lab checker B.SAP advisor C.Gatekeeper D.Mediator E.Substance Abuse Identifier c Although each of these monikers identify occasional, peripheral roles of the MRO, the DOT has clearly earmarked the role of the MRO as a gatekeeper. 6. After completing review of drug test results, interviewing the donor and documenting findings, an MRO must do which of the following?