i had done ivory wave bath salts, one day, and no more, then i took a drug test 7 days later and the test came back possitive, i was honest with my work, and am on administrative leave due to this, but now they are questioning me, that if i had done it after that night, because they said it should have been out of my system within 2 to 3 days, i did not do any after that, and i do not know anything about the statistics on how long it would stay, where do i find answers for this, because obviously the statistics are wrong