Hi, I just registered for the Micro exam. I am an LPN and going through ISU LPN-RN program. I am very overwhelmed and not even sure where to start. I ordered Micro Demystified last night and am going to print off the content guide at work today.But am at loss on what other study guides/books to use? Any tips/help is much appreciated.I want to test at the latest by the end of Febuary.