Expound on the fact that your BSN or MSN is more than just letters after your name. Let them know what you can do for them. Ask yourself what are three things that impressed you about the position. If you address these concerns before and during an interview it can help you to evaluate whether or not this is the right move for you professionally. The qualification process can actually help you to land in a place that will best fit your needs, and thus improve your chances for increased stability.
People accept people emotionally first and justify logically later.
The decision whether or not to hire is made within the first fifteen minutes of an interview, with the rest of the time spent logically justifying this emotional decision. Your credentials, your experience, and your professional background have gotten you in the door. Remember that people hire people, not qualifications. Often there are a number of qualified candidates interviewing for most good jobs. The person they hire will be the person they feel will most be able to work well with the team.