Marijuana urine test

Marijuana stay in the blood 2 days to 5 weeks. I'm certain a couple of hits won't affect your results.

Probably not if you only took a couple hits. You can go to the drug store and buy a home drug test for $10 to check for yourself at home.
Good luck.

You could also purchase (from a health food store) a product called Golden Seal Root, follow the directions and drink plenty of water and cranberry juice this will help flush your system.

But beware that they actually test negative urine for Golden Seal! Provived they have suspicions.

You are probably OK. But to be sure:

Drink a lot of fluids (non-alcoholic). I mean A LOT. You need to flush the THC out of your system. That is how all the "detox" kits that you might buy at certain stores work. What is important is the fluid.

Best of luck!