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Frequently Asked Questions About Drug Testing at InOut Labs

Will the MRO report my prescribed medication use/medical information to a third party?

Historically, the DOT’s regulation required the MRO to report your medication use/medical information to a third party (e.g. your employer, health care provider responsible for your medical qualifications, etc.), if the MRO determines in his/her reasonable medical judgement that you may be medically unqualified according to DOT Agency regulations, or [...]

Why are screening and confirmation cutoff levels different?

Screening and confirmation testing are performed using different methodologies that require different cutoff levels. The cutoff levels of an immunoassay (screen) are typically higher than those of a more sensitive GC-MS or LC-MS/MS confirmation test. The reason is that they test for a larger group of parent compounds, metabolites and [...]

Problem Collections: Refusal to Test

Summarized from 49CFR Part 40) and adapted to non-DOT collections. We model DOT protocols for all collections. The collector may terminate the process at any point if the donor does not cooperate. No one is forcing you to remain at the collection site. If you leave after beginning the [...]

Problem Collections: Shy Bladder

Summarized from 49CFR Part 40) and adapted to non-DOT collections. We model DOT protocols for all collections.  The collector may terminate the process at any point if the donor does not cooperate. Urine drug tests require either 30 or 45ml of specimen. If a donor is not able to produce [...]

Problem collections: Temperature Out of Range

Summarized from 49CFR Part 40) and adapted to non-DOT collections. We model DOT protocols for all collections.  The collector may terminate the process at any point if the donor does not cooperate. Temperature Out of Range Urine specimens are expected to be between 90 and 100 degrees Fahrenheit. If below [...]

Understanding Drug Test Results

Positive – Presence of drugs above the cutoff level Adulterated – Something has been done to alter the sample Shy Bladder – Inability to provide a sample Substituted Specimen / Invalid Specimen – Substance provided was something other than human urine and could not be tested Negative Dilute – Sample [...]

What is Direct Observation? Why would an observer be required for a drug test?

It is not uncommon for people to try to defeat a drug test, either by substitution or adulteration. Substitution simply means they smuggle in someone else's urine, or synthetic urine. Adulteration means they add an adulterant to their specimen which can make it invalid. To prevent this from occurring, sometimes [...]

2022 DOT Random Testing Rates

The following chart outlines the annual minimum drug and alcohol random testing rates established within DOT Agencies for 2022. DOT Agency 2022 Random Drug Testing Rate 2022 Random Alcohol Testing Rate Federal Motor Carrier Safety Administration [FMCSA] The random rates did not change for 2022.  Because the random rates did [...]

CDL Drivers Must Be Tested in the Period in Which They Were Selected

Q3. Random Testing Selection Period:  A driver that was selected in the first quarter but was tested on April 4. Is the motor carrier in violation for not testing the driver in the selection period they were selected, since the first quarter selection runs from January 1 to March 31? [...]

Do You Have Signed Receipt From Every Driver?

Question 1: If a driver refuses to sign a statement certifying that he or she has received a copy of the educational materials required in §382.601 from their employer, will the employee be in violation of §382.601? May the driver’s supervisor sign the certificate of receipt indicating that the employee [...]

What are drug test cutoff levels?

Drug testing detects the presence of drugs and drug metabolites using cutoff levels to determine whether a specimen tests positive or negative for the use of a specific drug. A cutoff level is a threshold. If the concentration of a drug is above the cutoff, it is a positive result. [...]