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A 38-year-old female asked:

I have been clean and in a program for 7 years and just had a drug test show up positive for codeine without taking it. the test said 47ng/ml- causes?

1 doctor answer1 doctor weighed in
Dr. Ed Friedlander
Pathology 45 years experience
We need to talk: As a pathologist, I would not accept this level as indicating codeine use. These assays generate background noise and low levels are to be expected when there's been no drug ingestion. This is about a sixth of 300 ng/mL which is a common cutoff for codeine. The lab's pathologist should agree or risk liability. I believe you're clean. If someone else doesn't, get a lawyer.
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Dr. Ed Friedlander
Pathology 45 years experience
Provided original answer
http://prhome.defense.gov/Portals/52/Documents/RFM/Readiness/DDRP/docs/8%20Standard%20Drug%20Testing%20Panel%20Update.pdf This paper addresses the military's standards for cutoffs for codeine; it depends what's being assayed. I've known other labs to report "positives" far below the accepted threshold, and thought there may be an ethical problem. Good luck getting this sorted out.
Jul 21, 2015

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