Hey Everyone, I just wanted to give my 2cents worth regarding studying for the CCRN. I have been in the Cardiac ICU for a little udner 2 years, and have decided to take the CCRN. This is how I prepared for the examination: I went onto the AACN's website and got the list of body systems and disease processes that will be on the exam (it is easy to find on their website under Adults CCRN- "prepare to take your exam". I basically went down the list, learning EVERYTHING I could about each disease process and abnormalities (and Normal limits). I studied from the Dennison book, PASS CCRN, and from my old clinical Critical Care book (Thelan's Critical Care Nursing, Diagnosis and Management by Urden, Stacy, and Lough). I took the PASS CCRN CD questions until I knew the answers by-heart. (which gave me false positive results when I was getting high 80's, 90's on the CD)...The CD, however, was by far, a VERY useful tool. I also bought Laura Gasparis Vonfrolio's book, "Critical Care Examination Review, 4th Edition. It was only 50 dollars on Amazon.com. It purley has questions, 1200 of them.... with rationales. This book was my favorite to learn from. I only wish it had a CD.. oh well.... I proabably studied for about 1 months before I took the test. I also paid the 50 dollars for the AACN's SAE test they promote on their website. It was worth it, and mimicks the real test- with the same computer screen lay-out and everything. I took this practice the day before I took the real test- I wanted to see an accurate representation of how I would REALLY do... I even tried to mimic the environment, (No music playing, turned off my phone, etc). Anyway, I took the test, and I passed. I got 102 questions correct= 82% I'll take it!!!! The questions in the PASS CCRN CD and all the practice tests I took were BY FAR harder than the actual test questions.. Don't get me wrong, there are some tricky questions.. but I don't think they were as difficult as the real-deal. I hope this helps! Good luck! You can do it!