Ernestine Wiedenbach was a leader in nursing. She was born on August 18, 1900 in Hamburg, Germany. She moved to New York, United States, in 1909. She graduated in nursing from the Johns Hopkins School of Nursing in 1925 and was certified nurse midwife by the School of Nurse Midwifery. association of maternity centers in New York in 1946. She began her career as an instructor in maternity nursing at Yale. faculty in 1952. In 1954 and 1956, she worked as an assistant professor of obstetric nursing and an associate professor, respectively (Sante, 2011). In people's general perception, nursing is a profession of taking care of sick people. According to Florence Nightingale (Alligood, 2013), nursing must be responsible for the health of others. Nursing theorist Wiedenbach made nursing easier to understand by defining terms frequently used in nursing practice, such as nurse, patient, nursing skill, knowledge, need for help, judgment, nursing skill, and person. Weidenbach gave a definition of the patient as an individual, sick or healthy, who seeks any suggestion, care or instruction related to health (Sante, 2011). This illustrates that everyone is a patient in one way or another because if a person asks for tips to be healthy, diets to lower cholesterol, he is also a patient within the meaning of the definition of Wiedenbach. Another important term frequently used in nursing is nurse. The nurse is a person who feels and thinks about the patient in addition to their work (Sante, 2011). Nursing theory helps managers, senior executives, nurses and other healthcare teams understand nursing and its contribution to the healthcare sector. Nursing theory helps guide and resolve problems in a clinical practice. Furthermore, nursing theory is crucial for educators, scholars...... middle of article......uis, Missouri: Mosby.Cragin, L. (2004). Theoretical bases of nurse-midwifery practice in the United States: a critical analysis of three theories. Retrieved from http://www.sciencedirect.com.ezproxy.uta.edu/science/article/pii/S1526952304002156Definition of Nursing. (2010). Retrieved from http://www.icn.ch/about-icn/icn-definition-of-nursing/ Howell, J. (2012). The changing role of nurses. H&HN: Hospitals and Health Networks, 86(3), 36-49. Idczak, S. (2007). I'm a Nurse: Nursing students learn the art and science of nursing. Perspectives on Nursing Education, 28(2), 66-71. Sante, M. (2011). Ernestine Weidenbach the art of helping. Retrieved from http://prezi.com/ts6gpefzbd-x/ernestine-weidenbach/Vandemark, L. (2006). Self-awareness and expansion of consciousness: Using nursing theories to prepare nurse therapists. Mental Health Nursing Issues, 27(6), 605-615.