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About 1 week. That is if you are clean to begin with. *** I guess it depends on what you were smoking. A normal cigerate will deposit nicotine in your blood which can remain in your system for up to 36 hours. On the other hand if it was a joint the THC deposited into your blood can last up to 90 days...but with such a low amount entering your system it is likely it will only last about 3 days unless you have been smoking it on a regular basis.

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15y ago
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14y ago

Hair tests can detect subtances for a mush greater time after use than urine or blood tests. The substance remains in the hair almost indefinitely, and a hair can even provide a history of drug use as different portions of the hair will yield different results. If you are male, a close haircut (after a short period of abstinence) is the best bet.

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14y ago

About a week. more like 2 years if you want a hair sample

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12y ago

about a month

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Q: If a person takes one puff how long will it stay in your system?
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