With an eye to tnbutterfly's comment, I'd have to echo others' comments--a review of Gen. Bio., Chem., Micro, A & P 1 & 2, w/n hurt. Broad general topics, with the ocnl. quite specific application. A lot of life experience w/n hurt, either.
OK, this w/n seem to help much--but, there's no way to tell you what w/b on the test you see. 've heard there's more than one TEAS version which may appear. 'Tis said, that some things appear on one version, which d/n on the other.
So--the more you know, the better-prepared you are.
Trying to pepare for what one "knows" will be on the exam is, IMHO, futile.
Looking for an edge?--my impression, from all I've heard, is that ATI expends much time, effort, and knowledge, to preclude one's getting that edge. What is tested is, what do you know? And, can you demonstate it?