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A male asked:

I smoke marijuana one time about 35 days ago i have a hair follicle test in two day should i pass?

1 doctor answer4 doctors weighed in
Dr. Randy Baker
Holistic Medicine 42 years experience
Probably: The best information I can find to answer this is from the website of NORML (who should know), which states that, while a hair follicle test can be positive for months in regular users, it is "doubtful" that it would be positive after a single use. See http://www.canorml.org/healthfacts/drugtestguide/drugtestdetection.html
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Last updated Dec 3, 2020

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