A friend of mine took a drug test for employment. He is about 5'7 135 lbs, has fast metabolism. He stopped smoking about 40 days before the test (smoked a hit a day for about 4 years previously). All at home tests showed up negative (about ten of them) and even a test done at the doctors that was sent to the lab came up as negative, which was done a week before the employment drug test. What are the chances of him failing the E-cup test? He is nervous because he hasn't heard back from the employer yet, but if he passed a test that was sent to the lab, shouldn't he be fine?
