Living as an oldest old in Rio de Janeiro: the lived experience told.

This phenomenological-hermeneutic study was an inquiry into the lived experience of 16 very old persons who were living in their own homes. The nursing perspective was Gadow's existential advocacy for nursing practice. The study findings led to the essence of the phenomenon: pragmatic transition to old age, within a restricted future. Heideggerian concepts were applied and the findings were discussed in relation to the guiding theoretical perspective and related literature. Understanding the meaning of being a very old person is fundamental to developing nursing interventions to help people remain independent, with a sense of self-determination, for as long as possible.