Special Procedures RN. Out-Patient Vascular Lab St Johns County, FL. Flex, Full-time, Part-time. Position Summary. MUST have Radiology special procedures/Cath Lab nursing experience. The RN is responsible for managing patients admitted or being seen for medical conditions or surgical procedures. performs the primary function of a professional nurse leader in assessing, planning, guiding, and evaluating nursing care provided to patients. The RN pr...