Although it's been a long while since I was in 2nd semester, I don't think my advice would be much different.
Head and neck is extremely important as is cardio. What you want to do is figure out how much time was spend on each topic during lecture and use that to determine how much time you spend studying for each area... They normally test more on what they spent more time on during lecture...
Any hand outs giving during lecture containing practice questions are usually pretty golden... as are the questions on the g-drive. Essentially, focus on what was covered in your lecture notes, payer close attention to anything clinically relevant. Best of luck!
B.S., Rochester Institute of Technology, 2005
M.D., Ross University School of Medicine, 2010
Internal Medicine PGY1 [X] PGY2[/ ] PGY3[ ]