Need to certify and I'm intimadated by exam process. Any recommendations on which exam is better ( easier) to take & pass? Lisc as FNP, but work only with adults ( have done same for nearly 40 yrs). Worked in surgicenters and medical esthetics last 10 years... checking if I can take only adult np exam. Have MSN as a CS since '83, & NP certificate since '95. Any recommendations on best study prep/ courses/ books/tapes, etc? Thanks for any input.