I graduated with an MSN, and became certified as an FNP in 1999, began my career in 2000 and worked for 5 y as a nurse practitioner before having to stop working because of a disability. After 7 years I'm ready to return to work. I need to re-test to get re-certified and would like advice on best way to go about studying for exam. I have the $400 study module from ANCC. What review questions book or onlline questions would you recommend? Would appreciate any feedback on this topic.