A member asked:

How long previous can urine drug tests detect pot?

A doctor has provided 1 answer
Dr. Heidi Fowler answered

Specializes in Psychiatry

Months: Single use of marijuana should be out of your urine in 1 to 7 days. Regular use of marijuana – should be out of urine in 7 to 100 days. 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.Marijuana regular use detected in hair for months. Single use might not be picked up in hair.

Answered 5/31/2013

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