How Long Do Drugs Remain In The Blood Stream?

Posted on Tue, 15 Jul 2014

Question: Can a hair follicle drug test be passed if I only took 1 hit off a joint 3 weeks ago? Only time ever used...

Answered by Dr. Pavan Kumar Gupta (3 hours later)

Brief answer....chances are very less
Dtailed answer...
Drugs can be found in the hair test for upto 90 days after the ingestion.
So you can definitely be tested positive after three weeks even if you have taken it once.
I hope it helps,however you may revert to me for any further query.
Best of luck
Thanks

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Above answer was peer-reviewed by : Dr. Chakravarthy Mazumdar