registered nurse (RN)

Individual who has graduated from a course of study at a state-approved school of nursing, passed the National Council Licensure Examination (NCLEX-RN), and been licensed by appropriate state authority. RNs are the most highly educated of nurses with the widest scope of responsibility including, at least potentially, all aspects of nursing care. RNs work in a variety of settings (e.g., hospital facilities, medical offices and clinics, public health departments, schools).

Registration

Entry in an official registry or record that lists names of persons in an occupation who have satisfied specific requirements or attained a certain level of education and paid a registration fee.

Regulation

Rule or guideline published by the federal government and administrative agencies implementing a law.
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US: Supervision of business practices by a governmental entity.