Drink the about 48 ounces of the gatorade the morning of the test.It maybe the same day as your orientation. Thats been my experience anyway.Piss a few times before the test and use the midstream of your piss.Eat all the red meat you got if you have any vitamin B take a couple tabs of that. Thats about all you can do unless you have a friend who you are SURE is clean and sub with his piss. Make sure you get it up to temp.