Keep in mind you need to know your nursing interventions. You’ve done the A&P, now focus on what the nurse will do. I really recommend looking at how to answer questions. Like remembering the A, B, C’s, Maslow, and such! Just knowing the information isn’t enough, try to apply the nursing intervention... if you can only do one thing to keep that patient alive or safe...which one is it? That will help. med surg is hard, but not impossible. You can do it!