With her life and work, Stefania Poznanska promoted the development of modern nursing in Poland. The concept of nursing process was
formed in the course of many years. At first, nursing care was understood as an active process of cooperation between nurses and patients.
This concept was followed by another one defining nursing as interpersonal interactions with behavioural and therapeutic significance. The
next definition of nursing care assumed it delivered assistance to individuals requiring help and it met their basic health and biopsychosocial
needs. From the beginning special attention was paid to the fact that patients' needs must be noticed and adequate actions should be taken
referring to an individual plan of care. At first, the concept of "a plan" was often used as well as the idea of nursing process. Finally, they were
defined as a plan and a process of nursing. With time the stages of nursing process evolved. Currently the following five concepts are used
most frequently: data collection, nursing diagnosis, planning, nursing interventions, and evaluation
