I want to get CNA certified, and would like some advice. I'm thinking of taking the 5.1 test only because there is more information out to study from, and because I think the material is still very relevant. Should I be thinking 6 or 6.5 instead? If so can someone recommend a great study book? Also I noticed that if you take the CNA 6 administration test after July 1st you have to pass the CompTIA Network+ certification first. Would my CCNA certification pass for this test? Having to take a second Network certification seems redundant and is one more reason why the CNA 5.1 admin test looks appealing for me.