Is it possible to test positive for THC (marijuana) from exposure to second hand smoke or consuming lots of poppy seeds can cause a positive test for heroin?
Absolutely Not for second hand smoke! Urine concentrations of THC above the cut-off sensitivity level of the test, or a positive result, is not possible by exposure to second hand smoke. Poppy seeds contain sufficient amounts of morphine to produce detectable concentrations of morphine and codeine in urine. But a test may be considered a positive for heroin, both legally and scientifically only if heroin, or its metabolite momoacetylmorphine (6-mam), is identified in the urine specimen. This result cannot be caused by consuming poppy seeds.
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- Is it possible to test positive for THC (marijuana) from exposure to second hand smoke?