Once again, the Elsevier HESI review books. I recommend completing all practice questions--those at the end of each section as well as the ones at the end of the book(s). Also, make mental note of the "HESI Hint" boxes in each section--for some reason I found a lot of this information really helpful on the actual test. Ultimately, I knew these sections would be the easiest ones for me, so I spent far less time studying for them and kind of consolidated my preparation.
HESI Admissions Exam Review Book - Lamar University