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    Forensics Girl's Avatar
    Forensics Girl Posts: 1, Reputation: 1
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    #1

    Feb 11, 2019, 01:29 PM
    10,000 ng/mL
    I am wondering how (if possible) the concentrations of certain drugs in a urine specimen can be used to indicate innocent/unknowing ingestion of a drug. I have an individual that tested positive for codeine (for which they do not have a prescription). The individual alleges that he received a tablet containing codeine without his knowledge. The results of his urinalysis generated 19,000 ng/mL of codeine. Given these results, would it be scientifically possible to justify unknowing/innocent ingestion.
    ma0641's Avatar
    ma0641 Posts: 15,681, Reputation: 1012
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    #2

    Feb 11, 2019, 03:00 PM
    Many panels use 150-300ng/ml metabolites as a minimum base. First you indicate 10,000 and then 19,000. Very substantial amount at 10,000 and 19 is almost 2X above that. 1 tablet won't do that.
    Fr_Chuck's Avatar
    Fr_Chuck Posts: 81,303, Reputation: 7691
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    #3

    Feb 11, 2019, 06:47 PM
    Plus, it would not prove them innocent, the issue of why they took a pill, they did not know what it was from someone,

    So they took it, thus they are guilty of taking it. Sorry,

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