Hello! I've been an RN at a Pediatric Hospital for about 1.5 years. I'm planning to take my CPN exam this winter. I've already taken a review course offered by my facility but had to postpone studying due to a few vacations I had planned. I was wondering if anyones taken it recently and how long you studied for? I've heard people say they've studied for a few weeks and some say 3 months... thanks!