So this is my story. I just recently failed a drug test on May 5th.
I used to a be chronic smoker, daily and many times a day, but I knew I would be drug tested for a summer internship so I stopped in January.
I then decided to indulge for spring break and smoked 4 days in a row. Stopped March 16th.
I had a drug test on May 5th, the day before I took an at home drug test and passed. May 5th drug test I failed, 50 days after quitting. I had read up on a few studies and most said the mean time was 26 days and at most 46 days for THC to completely leave the body. My drug test was a professional medical drug test and I believe the cut off was 20ng/ml. The at home drug test only tests up to 50 ng/ml. However, when my drug test came back positive, I was told I had a concentration of 85 ng/dl (which the lady said was like I smoked last week...Impossible...last time I smoked was March 16th). Then i started blaming my boyfriend b/c he still smokes and thought it must be due to second hand smoke. Well I've read a few studies posted on PubMed and they all state that it is very unlikely for someone to get the amounts needed to fail a drug test by second hand smoke, they would have to be in a car for many many hours with constant smokers for anything even close to failing a drug test.
I went to my doctors office and got a personal drug test sent off to LabCorp on May 19th, I passed, no more THC in my system, 64 days after I stopped smoking. My only explanation to this is I have a slow metabolism by my cyp P450 2c9 enzyme. I lost my job offer due to this event. I just wanted to share with some people my story.
My best advice, is to quit and drink lots of water...I really wish someone like me would of wrote a post like this. It's better to go in thinking your going to fail and pass, than thinking your going to pass and fail.
Wish everyone the best of luck and hope this never happens to you.
Sincerely,
OhNoIfailed