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FAQ
Can you test positive from passive inhalation of crack smoke?
Passive inhalation of crack smoke by people who were standing near or even holding the pipe of people who were smoking crack cocaine rendered cocaine levels of 22 – 123 ng/ml. That isn’t even close to the 150 ng ‘cutoff’ which would cause a test to be reported as POSITIVE. more...
Which prescription medications are most apt to create a ‘false positive’?
A FALSE POSITIVE is when a screening test shows POSITIVE for an illegal drug but laboratory confirmation shows NEGATIVE. This is more likely when the donor is taking multiple medications or supplements that can interact with the drug screening test. It is a rare occurrence. more...
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