![]() clinical viewpoint the sweat patch could serve as a. In comparison to smoking, few molecules make their way into the bloodstream. Much of the drug testing available today is able to determine the presence or absence of a variety. ![]() The researchers explained that when the chemical is swallowed, much of it is destroyed by the liver in a process called the first pass effect. I was amazed to learn that none of the recruits who took THC orally tested positive for the drug. One of them continued to test positive at the end of the four week study. Perhaps the others lacked the liver enzymes that quickly destroy the drug. ![]() In other words, by the second week, all but three of the eleven subjects were clean enough to pass a drug test. Eight of the volunteers had detectable levels of THC in their blood after the first week, but only three of them were above the cutoff (1ng/patch if you are curious) to be considered positive. ![]()
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