NUR 4257 - Advanced Nursing Care Concepts NUR 4257 - Advanced Nursing Care Concepts 3 cr. hrs. This course is an introduction to critical care nursing and is designed for students with the desire to work in clinical specialty areas. It will explore the advanced knowledge and concepts of body systems, disease states, and therapeutic management focusing on the systems (cardiovascular, pulmonary neurological, and renal) to include discussion of shock and trauma. Course Designations: (TR)