Week 1: Our Care Culture (graded) 70 70 unread replies. 107 107 replies. This week's graded topic relates to the following Course Outcome (CO). CO1: Applies principles of nursing, theories, and the care philosophies to self, colleagues, individuals, families, aggregates and communities throughout the healthcare system. (PO#1) Care expressed and practiced in professional nursing models provides a way of looking at the nursing role from the aspect of care. It may seem excessive to consi...