A member asked:

Can you tell me if i don't smoke at all and i smoked 17 days ago, is weed still in my system?

A doctor has provided 1 answer
Dr. Heidi Fowler answered

Specializes in Psychiatry

How much smoked?: 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 use can be detected in urine for 7 to 100 days (longer periods have been reported though).

Answered 5/29/2014

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