Thc in bloodstream. Hunault et al 2000 calculated that high dose (23 %) marihuana can stay in your blood stream up to 8 hours. However cannabis users can have products of metabolism circulating and excreted for prolonged periods of time. Cannabis users are usually identified through detection of 11-nor-9-corboxy-delta9-tetrahydrocannabinol (thccooh) in urine. Thccooh may be detectable up to 3 months.
Test clean. Answer depends on length and quanity of usage. Google this website. They do a very comprehensive job or answering your question, .
Depends. The drug will attach to fat cells in your system and gradually release/disappear over time. Infrequent or brief exposure will usually clear within a week. A chronic user may see a positive test for a month or more after stopping.