I think all these young nurses thinking of making this their career, should be very careful with any substances you might ingest, smoke, whatever, because your whole education can literally be removed from you without a trial and then you and your family will be living on the streets. The nursing boards are not very understanding and if you are having 52 urine checks a year, at 65.00$ a piece, what is the chance of having a false positive.?? Your whole entire life depends on it.