General Statement of Duties. Registered Nurse (RN) provides nursing care to patients and families based on assessed needs reflected in the plan of care. Service area for Potomac team is primarily Berkeley County, WV. . Level of Responsibility. Reports to Nurse Manager. . Status. Non-exempt. . Duties and Responsibilities. Denotes essential job functions. Assesses physical, safety and psychosocial needs of patients and families as they relate to nu...