The Certified Surgical Technologist – Surgical First Assistant (CSTFA) - CVOR provides aid in exposure, hemostasis, and other technical functions, including saphenous vein harvesting, that will help the surgeon carry out a safe operation with optimal results for the patient. Surg Tech, Surgical Tech, Surgical Technologist, CST, Surgical Technician, CVOR, Cardiovascular, CSTFA, First Assist, Certified First Assist.