CNN/CDN study advice?

Mometrix CDN study guide. $50 on amazon. You could look at the core curriculum for nephrology nurses, but it's very large and overwhelming I thought.

I believe that ANNA has changed their requirements recently. Outpatient nurses can usually just go for the CDN, unless you do varying other treatments besides HD.

Here's the link- it's not effective until January 1, 2015. But it states 25% of work must be in something other then outpatient HD to be eligible for CNN. If you work fast, might be grandfathered in? But I have my CDN and it serves me well as an acute nurse.

http://www.nncc-exam.org/cgi-bin/WebObjects/NNCCMain.woa/wa/viewSection?s_id=1073744582&ss_id=1&tName=cnnEligibilitySplash

Forgot to hit paste!

THANK YOU For the replies. Good to know about the CNN. I don't know how ready I would be to test/and grandfathered in, (if that is even an option). In my mind, a CNN really SHOULD apply to nurses doing other dialysis work than only outpatient hemo. It's so much broader. I am happy to get my CDN and go from there. I will be going back to school to further my education (goal an MSN), so I am willing to go for CDN, then go to school, and move on from there. Again, good information here and I am glad I asked. Thank you.