Most of it depends on your body (height,weight,physical activity,eating habits) If you pass you can go for real test. If you false? - a clean friend's urine or synthetic -detox (don't actually detox, and it work for 3 hours after taking ... Suserz Est. 1981 Says: April 16th, 2010 at 9:32 pm. One hit a week ago is not going to show up on a test. Its not enough unless you are extremely overweight. THC stays in the fat cells and clings to the urinary tract. ...