Replying to DRUG TEST

hi there, I just learned today that i have a drug test in the next week and i NEED to pass, if i don't then my dad could lose his job and i would NEVER be able to leave my house again. Ive smoked 2 grams over the weekend and almost nothing for a few weeks before that, how can i cleanse my system in one week in time for the test? I am in pretty good shape, and eat moderately well. There is probably already a thread on this, but i really need help, so please only give me useful tips that will help. Bullshit is not welcome.

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