Enjoy the break while you have! If you spend time on anything review cranial nerves, reflexes and what they asses, as well as generalized assessments. Know the correct anatomy terms. Look at stuff like eyes and ears and their anatomy. Learn your nursing basics well.... I know I had a pharm and patho class right out of the gate. I'm at the half way mark now, and typically review guidelines on diseases and preventative care in my spare time. Good luck!