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MRO Services

An MRO determines if there is a legitimate medical explanation for laboratory confirmed positive, adulterated, substituted and invalid drug test results.

Do you need a highly trained Medical Review Team or Medical Review Officer to help you remain compliant with all your drug and alcohol testing needs?

If so, CNS Occupational Medicine has the solution for you.

Interested in more information?

Who needs MRO services?
If you think you might need a Medical Review Officer, call us now!

If you are unsure whether or not you need a Medical Review Officer, here are three reasons you would need one. If you are still unsure, please call us.

You need an MRO to process all of your drug and alcohol testing results.

You need your results turned around quickly and efficiently.

You need a highly trained medical review team to help you remain compliant with all your drug and alcohol testing needs.

What is the MRO Process?

The MRO review process includes three main steps:

  1. MRO attempts to reach the donor who had a positive drug test result

  2. MRO has an initial interview with the donor

  3. if the donor claims a prescription could have caused a false-positive, the MRO follows a procedure to verify the prescription
drug testing


All audiometric testing will be performed within the comfort of mobile testing unit. Up to 8 employees can be tested at a time, thus increasing your productivity and eliminating the inconvenience of sending employees to offsite clinics. Employees will be back to work within 30 minutes.

Develop a Medical Strategy

Our Occupational Medicine Team will develop a custom plan for your company. You may need a combination of services like physicals, COVID-19 testing, and drug testing, and you may also need these services performed on-site.

Contact our medical team to Develop your custom plan.


We offer OSHA required testing for companies that fall under these type of regulations, including hearing or audiometric testing, respirator physicals and many other OSHA required tests.


We offer many different COVID-19 related services, including pre-shift and pre-employment screenings, rapid antigen tests, PCR tests, and antibody testing. Our medical staff is among the most professional and knowledgeable in the industry.

Our on-site medical services are available in specific areas right now and is constantly expanding. Check with us to about availability of Mobile On-Site Services.