If you took three hits off a joint about ten days ago and was totally clean prior how long will it stay in your system?

If you only smoked once, then yes, you should be able to pass a drug test for marijuana (unless it's a hair drug test). If you've been smoking every day or every other day for a long time, up until 10 days ago, then no, you probably won't pass a drug test.

If you're a regular user (like, a few times a week or more) then it typically takes 2 to 6 weeks, or a month on average, before you can pass a urine test. For less frequent users (less than a few times a week) it's more like 2 weeks to one month. But if you just smoke one time, ever, then it only takes a few days to leave your system.

For more detailed information, see the Related Question below.