We an obvious assumption that nothing illegal has occurred, one would want to "pass" a drug test only by "dilution", Any whole healthy drink with HIGH concentrations of polysaccharides will in general pull across the transverse colon the larger molecules that "need to be gone".Timing this hours before the test and possibly repeated -- timing it and having one output of urine several hours before the test, and the drinking great amounts of H2O before the test, would result in more water than molecule making it to the test. (Urine Test). There is nothing to do for any other type of test, except go to a to a dialysis clinic to get your blood cleaned up -- or blood transfusion.
