Hey im taking a drug test for thc and im nervous what are the cutoffs and days it remains in your system.

Depends on lab & pt.: Cut off level depends on the lab. 15ng/ml up to 50ng/ml. The lower cut off can detect a single use up to 7 days later. The detection depends on the person's use ( amount and frequency,) their metabolism rate and the period of abstinence before the test. THC is stored in the fat and in a chronic Daly user can be detected as far as 30 days after last use.