Wait, what does an invalid drug test mean exactly?
In case you've just received a call from a lab or even your boss and are wondering what does a good invalid drug test mean , it is important to do right now is remain calm. It's a confusing term, plus honestly, it's 1 of the almost all frustrating telephone calls you can get. You're probably sitting right now there thinking, "Did I fail? Am We in trouble? Why can't they just provide me a straight answer? " ...