Quote from classicdame
Don't worry about the other guy.
While I agree with the advice given in most of the post quoted above, I do disagree with this last statement. Be considerate of the needs of your team members. Don't be too self-centered. It isn't all about you.
Students, interns, externs, orientees, etc. who think that the entire world revolves around them are usually the ones who are not accepted by the staff. That's to be expected as a unit needs a team of people who work together and support each other to function.
Your unit will have sick people who need help and a staff of real people who are trying to help them -- but who also have personal needs. Their needs are just as important as yours. Try to find a balance between meeting your own personal needs without stepping all over theirs. Learning how to strike that balance is one of the most important lessons you can learn from your internship experience. Each shift should include a few experiences in which you learn something or do something "for yourself." But each shift should also include some time during which you do something to help the other members of your team.
At the end of each shift, ask yourself if you have done some of both.