dirtiest piss?

this could go in here or in drug testing..but more peopel are here..and my drug test is tomorrow morning so i need replies fast...ok well i am waking up ealry to get my dirtiest 1st piss out...but i have heard the first and second pisses are the dirtiest..but i wont have to pee when it is time for my test..and if i drink water it wil be clear and my mom wont take it..so can the second piss be taken or are they both equaly dirty..please reply

i think the best idea would be to take 2 pisses then drink a shit load of water, but eat something that will make ur piss yellow like asparagus i'm not sure if that will work 100% but its worth a try, good luck

if you HAVE to take the test on the second piss.......fill the cup in the middle of the stream.......sediments are in the very first and last stream of urine