MRO Test Review with questions
and well verified answers actual
exam!!! 2026
Can an MRO Assistant review non-negative tests? - ANSWER -No - all non-negative tests
(positives, adulterated, substituted, and invalids) must be reviewed by MRO
Which CCF errors can be corrected retroactively? - ANSWER -Omissions - Yes,
Discrepancies - No
Is there a set method for correcting CCF errors? - ANSWER -No - MRO can ignore minor
errors or correct with initials, Written "statement of correction" for major errors, consider
notarized affadavit (better in court)
Who must have opportunity to speak personally with MRO? - ANSWER -Those with
positive, adulterated, or substituted tests
What sort of records should the MRO keep of contacts? - ANSWER -1. Document valid,
consistent, SOPs
2. Log each attempt to contact
3. Document timing for 3 day and 10 day clocks
4. Validate meds with MD or Pharm D
What are the only results reported by MRO? - ANSWER -1. Negative (with remarks if
dilute)
2. Positive
, 3. Cancelled (with reason)
4. Refusal to test (with remarks - adulterated, substituted..)
Who are results reported to by MRO? - ANSWER -1. Employer - within 24 hours of
verification of non-negatives
2. Donor - or authorized designee
3. Court of law - prn
4. to DHHS / DOT - (if split failed to re-confirm or if substituted result is cancelled - rare)
When must a split specimen be analyzed? - ANSWER -Must be requested within 72
hours
If primary specimen is positive, how long must split sample be preserved for? -
ANSWER -1 year
According to the American's with Disabilities Act (ADA) can you do a drug screen before a job
offer? - ANSWER -Yes, Drug tests are not medical examinations under ADA
According to the American's with Disabilities Act (ADA) can you do an alcohol screen before a
job offer? - ANSWER -No, ETOH is a medical test and is prohibited before employment
by ADA
Can MRO accept medical THC as a legitimate Rx? - ANSWER -No - Federal Law trumps
state law and THC is Schedule I, there is no acceptable excuse for a federal employee to have
THC
At what age does illicit drug use peak in the U.S.? - ANSWER -18-24
Which type of drug test are most non-DOT employers most likely to require? - ANSWER -
Pre-employment
What percentage of employees who work part-time are most likely to have used an illicit drug
in the last 30 days? - ANSWER -12.5%
and well verified answers actual
exam!!! 2026
Can an MRO Assistant review non-negative tests? - ANSWER -No - all non-negative tests
(positives, adulterated, substituted, and invalids) must be reviewed by MRO
Which CCF errors can be corrected retroactively? - ANSWER -Omissions - Yes,
Discrepancies - No
Is there a set method for correcting CCF errors? - ANSWER -No - MRO can ignore minor
errors or correct with initials, Written "statement of correction" for major errors, consider
notarized affadavit (better in court)
Who must have opportunity to speak personally with MRO? - ANSWER -Those with
positive, adulterated, or substituted tests
What sort of records should the MRO keep of contacts? - ANSWER -1. Document valid,
consistent, SOPs
2. Log each attempt to contact
3. Document timing for 3 day and 10 day clocks
4. Validate meds with MD or Pharm D
What are the only results reported by MRO? - ANSWER -1. Negative (with remarks if
dilute)
2. Positive
, 3. Cancelled (with reason)
4. Refusal to test (with remarks - adulterated, substituted..)
Who are results reported to by MRO? - ANSWER -1. Employer - within 24 hours of
verification of non-negatives
2. Donor - or authorized designee
3. Court of law - prn
4. to DHHS / DOT - (if split failed to re-confirm or if substituted result is cancelled - rare)
When must a split specimen be analyzed? - ANSWER -Must be requested within 72
hours
If primary specimen is positive, how long must split sample be preserved for? -
ANSWER -1 year
According to the American's with Disabilities Act (ADA) can you do a drug screen before a job
offer? - ANSWER -Yes, Drug tests are not medical examinations under ADA
According to the American's with Disabilities Act (ADA) can you do an alcohol screen before a
job offer? - ANSWER -No, ETOH is a medical test and is prohibited before employment
by ADA
Can MRO accept medical THC as a legitimate Rx? - ANSWER -No - Federal Law trumps
state law and THC is Schedule I, there is no acceptable excuse for a federal employee to have
THC
At what age does illicit drug use peak in the U.S.? - ANSWER -18-24
Which type of drug test are most non-DOT employers most likely to require? - ANSWER -
Pre-employment
What percentage of employees who work part-time are most likely to have used an illicit drug
in the last 30 days? - ANSWER -12.5%
