A member asked:

Hello docs. i was wondering can weed leave your system in 2 and a half weeks?

A doctor has provided 1 answer
Dr. Heidi Fowler answered

Specializes in Psychiatry

That depends.....: Single use marijuana may be found in blood for 12 to 24 hours. Regular use marijuana may be found in blood for 2 to 7 days. Single use marijuana might be detected in urine for 1 to 7 days (or more) and regular marijuana can be detected in urine for 7 to 100 days (longer periods have been reported though). It may remain in hair for months.

Answered 12/19/2013

4.7k views

Thank

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