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A member asked:
Docs, usually how long is marijuana in your blood stream?
4 doctors weighed in across 2 answers
THC: Single use marijuana can be detected 12 to 24 hours in blood. Regular use marijuana can be detected for 2 to 7 days in blood.
Answered 12/6/2018
4.9k views
Depends on usage: it can be as long as 6 weeks in heavy users. Picked up in urine tests. On the other hand, it can be gone in a few days in second-hand smoke exposure or a single inhalation. It varies from person to person but not as much as the amount used and especially usage on a routine basis. That causes a lot of build up and longer clearance times.
Answered 12/6/2018
2.1k views
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