A member asked:

If i'm clean, and smoke pot one time how long stay in system?

A doctor has provided 1 answer
Dr. Heidi Fowler answered

Specializes in Psychiatry

Cannabis detection: Single use of marijuana should be out of your urine in 1 to 7 days. Single use marijuana can be detected 12 to 24 hours in blood. Single use might not be picked up in hair.

Answered 7/14/2016

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