I took the course 3 years ago, not sure what has changed since then. I didn’t think it was too difficult. If you read the chapters and do the practice tests at the end, you will be fine. (The review quizzes were much harder than the module tests, in my opinion.) I had all the chapters “bookmarked” so I could look something up quickly if needed. (You have an hour to complete each module test if I recall) You’ll be fine on the final if you do ok with the modules. It really wasn’t that bad. I know when I took it, a different nurse has just taken over the program. Hopefully she made some changes as it seemed it could use some updating. Let me know if you have other questions! Good luck!