How much marijuana must be consumed to test positive on a drug test?
One hit will probably test you positive if you take the test the next day. However, here are many factors that come into play when talking about testing positive: how much you smoked, how much time between the last smoke and the test, what kind of test, how much fat you have, your metabolism, how much you exercise or generally burn up calories, what you diet is like, et cetera. So as you can see this answer is mind-numbingly more complex than your question allows. And yet for good reason.
