Abilities to deliver the most safe, total proficient and excellence of care to different groups in healthcare. Due to many actions and modifications in healthcare role of nurses is transformed. Nurses have to be competent to make critical decisions, information, educate and coordinate with patients their families and other health care professionals, and they have to perform research to make progress in nursing and patient care consequences. There are four main causes which define the differences in competencies between associate degree prepared nurses and baccalaureate degree prepared nurses.