Intravenous (IV) therapy delivers fluids, medications, blood products, or nutrients directly into a patient's bloodstream through a vein. This method allows rapid absorption and precise dosing, essential for emergency care, surgery, chemotherapy, and treating severe dehydration or infection. IV therapy requires trained healthcare professionals and sterile equipment to prevent complications. While healthcare is provincial jurisdiction, municipalities may encounter IV therapy in emergency medical services, public health programs, or supervised consumption sites addressing substance use. Understanding this common medical procedure helps citizens navigate healthcare situations and appreciate the specialized care hospitals and paramedics provide.