Call up your employer and ask for your "start date". The employers answer will clue you in on whether you passed, or if the employer has moved on to the next applicant for hire. Never inquire about the test results! A person who is clean would never do this because being clean, theres no reason to do this. You do want to be viewed as a clean person, do you?

If you already have a start date, just show up for work with the mindset of a clean person and carry on with your duties as such. And dont discuss anything about the drug test to anyone on the job.

You'll be notified if there were any problems with the urine sample.