Hi, There has been so much discussion about this very subject in just the last few days and there are a few threads just below this one about blood. I personally have come to the conclusion that below is as close as I can find....


Cannabis......BLOOD......SALIVA......SWEAT........ URINE HAIR

(single use)..2-3 days....12-24 hrs...unknown......2-3 days up to 90 days

(habitual use)2 weeks....12-24 hrs...unknown......up to 12 wks up to 90 days
jeffman Reviewed by jeffman on . Buying time for Pre-employment drug test??? Hello, I was wondering if anyone else could offer any advice in this matter. I just got an offer today for a job at a small to medium-sized corporation. It's a professional job and it took 2 weeks of checking references after the interview until they finally FedEx'd my offer. I start (if I pass the test) in 19 days. I need to buy as much time as possible before the drug test in order to pass because it's a blood test and the only way to beat one of those is with time! I will talk to Rating: 5