American Nurses AssociationThe American Nurses Association (ANA) is a full-service professional organization representing the nation's 2.9 million registered nurses (RNs) through its 54 constituent member associations. Provides information on careers, nursing standards, ethics, and association activities. ANA position statements, continuing education opportunities, and the Code of Ethics for Nurses with interpretative statements may be found on this site. Membership may be required for full access.