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    kristintrose89's Avatar
    kristintrose89 Posts: 1, Reputation: 1
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    #1

    Jul 30, 2012, 10:46 AM
    I smoked a hit of marijuna one week ago will I pass a hair follicle test?
    I have never smoked before in my life, my boyfriend persuaded me to take one hit and we passed it back and forth, I'm not even sure I was doing it right and I didn't hold it in long and didn't feel any of its effects... today I took a hair follicle drug test for a new job.. do I have a chance or will I fail miserbly?
    DrBill100's Avatar
    DrBill100 Posts: 3,241, Reputation: 502
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    #2

    Jul 30, 2012, 11:34 AM
    One time use of marijuana is not going to be detectable on a hair drug test.

    “In contrast to other illicit drugs, hair analysis lacks the sensitivity to act as a detector for cannabinoids” .”

    Musshoff F, Madea B. (2006) Review of biologic matrices (urine, blood, hair) as indicators of recent or ongoing cannabis use. There Drug Monit. Apr 2006;28(2):155-63 also see

    Genen & Bienenfeld, Cannabis Compound Abuse Workup

    Galanter & Kleber, 2011 Psychotherapy for the Treatment of Substance Abuse, American Psychiatric Publishing, Wash, DC, p. 58 quoting “Positive results from hair testing are generally expected only when a person has used a drug at least four to six times per month” [This applies to drugs in general and not just THC]

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