Registered Nurses assist Physicians with providing patient care by performing examinations and tests, administering medication, treating wounds and a myriad of other duties. They also act as a liaison between patients and doctors and answer questions or offer guidance for patient families. Often Registered Nurses will oversee a team of other healthcare professionals and will delegate tasks to them. The exact duties of a Registered Nurse will vary depending on the work environment; they may work in health clinics, hospitals, rehab centers and beyond.