In the world of drug testing, no news generally means good news because every donor is presumed to be "clean" beforehand.

The donor would be notified if there were any issues with the sample. A lab MRO may contact the donor of any issues, but consider this to be a service on the MRO's part - not an obligation. Thats because the person that is paying for the U/A is the one thats entitled to first dibs of the U/A results.

If you are waiting to be put to work by an employer, you can call them and ask questions like "When can I start work?" etc. NEVER inquire about the U/A results. That makes it all look bad. A person who is truly clean would never ask that question. You must assume the mindset of a clean person and carry on in such a manner during all interactions with the employer and other employees.

And relax. imp: