How to become an RN (Registered Nurse)? RN Nurse schooling requirements and steps required. If you want to work as a registered nurse, you'll first have to attend a nursing program. This typically takes 2-4 years, depending on the path you choose and your educational background. Once you graduate, you must pass the state boards exam, known as the Next Generation NCLEX. Once you pass the NCLEX, you can begin working as an RN (registered nurse). #rn #becomeanurse #registerednurse #nursetok #nursin