Attention drivers with false positive drug results. I am trying to determine if any connection exists in false positive results. Please answer the following questions to help.
1. What drug did you test positive for?
2. Have you ever taken this drug? If so, when was the last time
you used?
3. What was the name/location of the lab that processed your
sample? *Please note this is different than the name/location of
where the sample was collected. There are only 42 labs in the US
authorized to process the tests. You can view the list be
visiting the [LINK POSTED BY MEMBER] Only Members Can View This Truck Forum Link.
website click on drug testing and then list of certified labs.[LINK POSTED BY MEMBER] Only Members Can View This Truck Forum Link.

4. What was the name of the MRO that provided your results?
5. What company did the MRO work for? *This is usually the name of
the company that you had to request the split sample through.
Should also be listed on your results paperwork.
6. Was your split sample tested? If so, what was the name/location
of the lab that processed second sample?
7. What company did you work for when the test was taken?
8. When did your false positive occur (date)?
9. Did you have any follow-up or independent testing done? If so,
what type and what were the results?
The reason that I bring this up is that I recently met someone through forum that had the same experience as mine. It turned out that we were tested by the same labs and our results were given through the same MRO, even though we live across the country from each other. It occurred to me that this may happen more often than we think and that maybe we just need to ask the right questions to see a pattern.
God Bless you all!

Never have had a false but i have seen several post here about having one... So, it does happen.. I am sure it sucks when these test don't work correctly because they are taken as 100% accurate by the company, it can easily destroy somebody's life (at least at that moment) Good luck.....

It seems, from what I've read here, that trucking companies are worse than airlines about this. In the aviation industry, if you test positive, they ground you pending the results of a second test. If the second test comes back positive, that's when you're looking for a new career.