Family-centered care is an important component of holistic nursing practice, particularly in critical care, where the impact on families of admitted patients can be physiologically and psychologically burdensome. Family-centered care guidelines, developed by an international group of nursing, medical, and academic experts for the American College of Critical Care Medicine/Society of Critical Care Medicine, explore the evidence base in 5 key areas of family-centered care. Evidence in each of the guideline areas is outlined and recommendations are made about how critical care nurses can use this information in family-centered care practice.