Haha, I just got done donating actually. I still have the bandage on. The center here gives you $15 your first time and $30 your second time. You go twice a week. The one I used to donate at at a different college paid less. You usually get extra like your first time, but after that it goes down to that.

The whole procedure doesn't really hurt at all but you gotta chill there for a little while, usually takes 2-3 hours from the time you get there til the time you get done. Longer if its your first time.

But yeah, you get a physical and asked a bunch of medical questions, you can't have done a lot of shit, but they don't test for drugs. You will pee in a cup, but its not a drug test, its checking other levels to make sure you're healthy. Just don't smoke right before you go in, it raises your pulse and blood pressure. I know for sure, cause I've been several places and never stopped smoking once.