Hair test positive for codeine only with no prescription

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helent
Posts: 5
Joined: Thu Oct 24, 2019 6:42 pm

Hair test positive for codeine only with no prescription

Post by helent » Thu Nov 21, 2019 2:46 am

A hair test is reported by the lab to be positive for codeine only, at 3.34 ng/10 mg ( cut-off 2 ng/10 mg). The donor has no prescription for codeine medication and did not give a positive history of poppy seed ingestion.

The MRO Manual textbook states that poppy seeds contain small amounts of morphine and less of codeine and that in urine testing, results where codeine predominates are inconsistent with poppy seed ingestion.

In this case, the concentration of codeine is low relative to the cut-off level. Are there any other considerations before I verify the test as a positive test given a lab reported positive codeine and there not being a prescription for codeine medication as an explanation? The donor will lose his job if the test is verified positive.

Thank you, HT



Robert Swotinsky MD
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Joined: Sun May 23, 2010 3:42 pm
Location: Sudbury, MA

Re: Hair test positive for codeine only with no prescription

Post by Robert Swotinsky MD » Thu Nov 21, 2019 3:12 pm

There is limited data in the medical/scientific literature about poppy seeds and positive results. These data indicate that codeine is not detected in hair using typical cutoffs after considerable poppy seed consumption. Report the result as verified positive.

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