Nursing is a profession that involves prolonged training and formal qualifications. It requires specialized knowledge and skills drawn from various sciences. As a profession, nursing has a philosophy of caring for individuals' health through a relationship between humans, environment, and health. Nurses must meet certain criteria including using evidence-based practice, having autonomy, and being accountable. Their responsibilities involve caring for clients holistically as caregivers, decision-makers, and patient advocates through integrity and providing safety.