Webread what is it like to be a registered nurse (rn) including duties, challenges, and perks. Also, explore how to start an rn career. Weba nurse navigator is a registered nurse who specializes in assisting patients through the various stages of healthcare. They provide personalized care and support, helping. Webthe thoracic/pulmonary oncology nurse navigator (onn) plays a pivotal role in a rapid diagnostic and treatment pathway facilitating timely access to care and.