I guess I am basing that on the fact that my roomate's test had a line that was about twice as dark as mine. Mine was still definitely visible, just not as dark, so to me, that makes me wonder if the hospital i'm testing at tomorrow has a lower pass threshold than this piss cup did. I mean, i would say i definitely passed according to this cup, but because my line isn't as dark as my roomates, it has me worried. Sorry man, i'm just terrified as I have a lot riding on this pass.