I'm sorry, I went through something like this a year and a half ago. I had the pre-op urine drug screen (just the dip test) at a the small hospital lab that I work with. Despite the book from the test states false positives occur for amphetamines when you are on Zantac, the surgeon would not do the surgery! Even when I explained I pass drug screens all of the time for exposures; challenges with narcotics in the pharmacy, returning to work following procedures etc. This year when I reapplied, I insisted on the 10 panel urine drug screen and passed (after $800 cost) but I know how hard it is to get close and not have it go through. I am praying you do not have to have a long wait. While several people are over a year out, I am just getting done next month, Maybe you will be able to have it then also!!!!