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Indianapolis, IN
A 20-year-old male asked:

I hit a blunt at the beginning ofapril i had blood taking and it was negative for marijuana two weeks later i had to take a mouth swab will i pass?

2 doctor answers4 doctors weighed in
Dr. Robert Killian
General Practice 30 years experience
More Information: Thank you for clarifying. If the blood test is negative the oral swab will also most likely by negative. Your hair test, however, will be positive. Marijuana users usually test positive for many weeks. So, you must not be a regular user.
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Dr. Anthony Vertino
Clinical Psychology 25 years experience
Possibly: Each test has a different level of sensitivity so you may or may not.
Created for people with ongoing healthcare needs but benefits everyone.
Last updated May 14, 2016

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