You cant.
THC is found in Marijuana its what gets you high when you smoke weed.
It just gave me a false positive for marijuana for a drug screen for a job.
what medications cause a false positive on a drug screen for marijuana?
NO!
What if you smoke marijuana a month ago but you only smoke one time would it show up on your hair drug test
Marijuana.
The chemical found in marijuana can remain in your system for up to 30 days.
It depends on the type of drug test. It also depends on how much you smoked before you stopped, and how much body fat you have.
no cuz its considered a "drug"
yes
yes it can be a false positive.
The less you smoke, the quicker it gets out of your system. One joint may be out of your system in 7 days, but heavy, daily use can take up to a month.