A 30-year-old member asked:
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i smoked weed for the first time on saturday but only took one hit. how long will it take to leave my system?

2 doctor answers
Dr. Carlos Satulovsky
27 years experience Psychiatry
Many: Many days. Impossible to predict in your particular case, maybe even around 1 month. The best way to be clean is to stay clean. Best wishes.
Answered on Jul 20, 2014
Dr. Heidi Fowler
24 years experience Psychiatry
Cannabis: 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).
Answered on Mar 13, 2017

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