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A member asked:
Friend will be tested because of positive drug test for pot at 19 weeks. hasnt touched it since will it show in meconium at birth in 20 weeks?
A doctor has provided 1 answer
Wrong test: Meconium is fetal not maternal. There is no standard lab test for thc metabolites in meconium. A retest of your friend would normally entail a urine test and in that case it will still be positive as thc metabolites can persist for over a month after cessation of pot smoking.
Answered 6/10/2015
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