A Certified Registered Nurse Anesthetist (CRNA) provides anesthesia care including IV sedation, general, regional, and local anesthesia across multiple medical specialties. The role involves flexible scheduling with manageable call volumes, performing procedures such as arterial lines, nerve blocks, and central lines using specific medical equipment. CRNAs work in diverse clinical areas including cardiovascular, neurology, orthopedics, pediatrics, and obstetrics.