Certified Registered Nurse Anesthetists (CRNAs) independently provide anesthesia care across a variety of surgical specialties including orthopedics, neuro, ENT, GI, pediatrics, urology, and OB/GYN. They manage their own anesthesia cases, perform epidurals, spinals, central and arterial line placements, and blocks while collaborating with physicians in a hospital setting. The role requires advanced certifications and involves rotational on-call duties with credentialing through EPIC EMR systems.