http://www.waldenu.edu/Degree-Programs/Masters/Master-of-Science-in-Nursing.htm - Working as a nurse, you need to be an RN, but going from an RN to MSN may be a good idea. To do this you need a masters of nursing course. Luckily, you can get an online masters in nursing from reputable schools today. Getting a masters in nursing can mean more opportunities for you in the future.