A member asked:

I have a hair drug test coming up and smoked about a month ago. only alittle bit will the concintration be enough to show up?

A doctor has provided 1 answer
Dr. Pamela Pappas answered

Specializes in Psychiatry

Hair test: Marijuana (thc) can be detectable in hair for 90 days.

Answered 12/9/2013

5.4k views

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