You are unique. Nobody knows your metabolism , your weight, your overall health, how much you ingest and how often and that's why BL doesn't answer ( or allow ) drug testing questions. Could be 4 days or it could be 10. We just don't know , nor do we presume to know, and can't give false hope to people and then they think they will pass.....and then they don't.
Sorry i have to close this but good luck on your test.