Know the developmental theories of Erikson, Maslow, Piaget. Nursing instructors were always asking me to apply these theories or tell what stage of the developmental life cylcle a patient was in, in order to determine the patient's needs and develop a care plan.
Some schools are still all hepped up about nursing diagnoses and "The Nursing Process." And they might wander all over the garden paths when teaching students "The Nursing Process." ADPIE, or sometimes ADOPIE Nursing process - Wikipedia, the free encyclopedia
But it's not that complicated. It's really just a roadmap to assess p't, convert a medical diagnosis into issues and tasks that a nurse is allowed to do (nursing diagnosis the nurse can use), decide what the desired outcomes are, formulate a plan, implement the plan, and evaluate it's effectiveness. Rinse, lather, repeat. Assess, assess, make changes as required.
The school I attended was a diploma program that didn't run the conventional nursing units. It chopped topics up and gave us part of it one term and part another. The clinicals were rotations that were not sync'd with the lectures. etc. Accelerated RN (I investigated that type of curriculum to see how it's laid out, before I went diploma) looks like it'll have you doing the same double and triple efforts, because most of those programs are teaching two or more unrelated units of nursing concurrently in a semester. I don't know about you, but I learn better by totally immersing myself in something, staying on ONE TRACK, until I learn it, and then I move on to a different topic. With that school's "integrated" curriculum, I had a heck of a time as a perfectionist and an exacting technologist studying all about pregnancy, motherhood, child development, med-surg, learning the drugs (I aced the calculations, in my sleep, lol), etc, all in fragments and all at once. I didn't know anything about nursing or patient care or major illnesses or pregnancy or kids or anything, before I started. And our clinicals were always some topic either ahead or behind the lectures, so it was like going to two RN schools at the same time. Just too much "new" for me to really learn well. It just overwhelmed me to have to be CRAMMING
totally unfamiliar material all the time. Relentlessly. I hated it. I never found a solution. I burned out after 12 months and left. I advise chatting with students who already went through your program, last year, to see what the killer terms are and how they coped with it.
Anatomy: Learn where the veins & arteries are relative to each other. Be able to look at a body and picture circulatory system, have a good mental pic of the bronchial tract, etc., know how the heart and lungs work and what all they do, know how the kidneys work. I took A&P a couple of years before I started RN school and it constantly annoyed me to have to go back and look up stuff that I could not instantly remember. RN school is all about time. You NEVER have enough time. ANYTHING that you can learn and memorize and understand thoroughly now, and carry around in your head, will help you to be more efficient in learning the nursing theory material later.
You'll have to cite references out the wazoo, every time you write a paper or a care map or care plan. Learn and memorize how to write up the APA citations for textbooks, chapters of edited books, etc. You always need to cite a book or other appropriate reference, and type up that reference, because a RN must be able, for liability reasons, to cite a source that is the basis of your decisions on the job. (Nurse just can't do something because it seemed like a good idea.)