Tuesday 2013?: In a chronic user, urine test may be positive for as long as 77 days. You may try to drink a lot of water to dilute out your urine, however, labs measure urine creatinine to control for excessive dilution of urine. See this site for more information. http://www.cannabis-med.org/english/faq/10-urine-test.htm.
Answered 2/11/2013
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