There is no way to accurately tell. It depends on your body and how active your organs are.
You should figure on being at the long-time end of the wide range of variation with pot (THC) use. Say, one month. (Other recreational drugs take a few days to not be detectable.) But you say you smoked 5 joints. That can easily extend your waiting time to more than a month to stop smoking before you have a drug test.
Also, THC is detectable in your hair as long as you still have the hair you had when you smoked. It stays there for years unless you cut your hair off. And not just on your head, either. Some employers are starting to use the hair test, these days.
I hope this helped.
Marijuana aka (Canabis) Can stay in your unrine or blood stream for up to 28 days.
Marijuana will show up in urine for up to 13 days. This will also depend on the frequency of use and the quantity taken.
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28 days
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Cannabis is stored in fat and can be detected for up to 77 days
Ritalin will typically stay in your urine for a month. Urine tests are sensitive enough to detect urine long after the last consumption.
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