An RN is a registered nurse, and an LVN is a licensed practical nurse. The main difference in the jobs is related to what medications LVNs are allowed to administer. Find out why LVNs are an important part of health care withhelp from a licensed RN in this free video on nursing jobs and health care. Expert: Kayti Brosnan Bio: Kayti Brosnan has been a licensed RN in the state of Texas since 2003. Filmmaker: Todd Greenhttp://classesandlessons.info/wp-content/uploads/2009/08/vitalethics-468×60-040409-1215.gif