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    lakerfan999's Avatar
    lakerfan999 Posts: 1, Reputation: 1
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    #1

    May 13, 2011, 05:34 PM
    Understanding drug test results.
    I failed a probation drug test - I tested positive for thc. I have not been using. PO sent test to lab for confirmation. I went to doctor and got my own urine and blood tests. Received the results. None detected in blood. However there was something detected in urine, but I don't know what it means.

    The test was done by Quest Diagnostics. It was called Marijuana by GC/MS, Urine. It gave an in range number of 56ng/ml and a detection limit of 15ng/ml. It does not say if this is a positive or negative result or if it measured all marijuana related substances in my urine or the one that I thought confirmation tests looked for, THC COOH.

    Can someone help me understand these results? Thanks.
    massplumber2008's Avatar
    massplumber2008 Posts: 12,832, Reputation: 1212
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    #2

    May 13, 2011, 05:53 PM

    Hi Lakerfan...

    Click on this link... explains better than I can... ;)

    6405N SAP 5-50 GC/MS What is it? - Marijuana.com

    By my interpretation of the information, you have exceeded the 15ng/ml (56ng/ml exceeds 15) and now I believe a GC/MS conformation test will be done to confirm this... see link above.

    Looks like the initial test has given reason to perform another test for THC... probably why you didn't get a positive or a negative result here... ;)

    Check back for others' answers as I know little about this stuff, but it looks like they proceed to test with a "real" test (the GC/MS) now and I'm sure you'll be notified of end test results!

    Back to you...

    Mark

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