well first off, 37 seven days away from the test date is pretty much home free in my book because thats a very long time to detox, actually at that point you really wouldn't have to do anything and you could pass. but if you choose to detox then just drink a lot of fluids cranberry juice,water, the works. and on top of it take a creatine supplement every day to keep the creatine levels in your urine up(thats what they test for in the urine tests to see if its been diluted)thats my two cents