Drug test (info needed...detox pills)

Alright so i'm gonna start donating plasma to earn some extra cash and i know for a fact that the first time you go they give you a somewhat extensive physical...included in this physical is a piss test...from what i've heard they don't actually check for THC but just to be safe i wanna be clean...the test is like less than 2 weeks away and i was wondering if there was any kind of detox pills i could get at like GNC that would clear my system within like 3-5 days...any info would be greatly appreciated!

ouch...give blood man...are you a junky..or desperate for $$$$$.. i give blood for free...but plasma... i heard it hurt,and yeah i get high and give blood..so i think you fine...

Nah i'm just busy in high school with sports and homework and i just ond't have time for a part-time job so i'm just gonna donate plasma for some extra cash... and actually donating blood and donating plasma are essentially the same thing...donating plasma is when they extract the blood from your veins and then separate the plasma which is in your blood and then return the blood back into your system...essentially the same except you get the blood pumped back in you.

well. your fine..i promise..but ouch...it is not the same thing...big needle...i heard..?