http://www.bvnpt.ca.gov/sitemap.htm
My junior college (Pasadena City College) offered a 36 hour instruction course at the end of which we received a certificate of course completion for intravenous therapy and blood withdrawal.
Find out if your school offers this training. If not I'd then check out the website above and see if there is a local place that offers it. You might even be able to learn through the American Red Cross.
There's another list from Wikepedia that might be of some interest. You'd have to do some follow-up research to find out if there is a place in O.C. that offers the training.
Best of luck to you !
http://en.wikipedia.org/wiki/List_of...ng_credentials