Cannabis swab test question

Hey guys. So I've been smoking medical for a while but the problem is my boss doesn't know and he has a no drub policy at work. I mean I could maybe tell him i smoke medical but not sure how it would do down. Anyhow problem is I have a drug test coming up soon, in the next 30 hours or so to be exact.

What are some tips to try and pass it? I smoked about 24 hours ago? Are site like this reliable? http://dankninja.com/swab-drug-test/ The raw onion things doesn't sound to appealing.

Anyhow any tips would be good.

Thanks

from what i've seen posted, swabs work for very recent use
less than 24 hours is my understanding, but don't take that as fact
subbing to see what the current wisdom is

Listerine mouth wash is the only thing I know of, rinse your mouth with it a lot in the next few hours and try to get one in before the test

I always rinse my mouth out before riding my motorcycle and take those breath strips with me to use after I've stopped somewhere for quick spliff

If anyone says anything tell them you a highly infectious throat illness