CRNAs provide comprehensive anesthesia care to patients before, during and after surgical and obstetrical procedures and are the primary anesthesia professionals in rural and medically underserved areas. CRNAs practice in every setting in which anesthesia is administered including traditional hospital surgical and obstetrical suites, interventional pain management, critical access hospitals and ambulatory surgical centers. CRNAs also practice in the offices of dentists, ophthalmologists and plastic surgeons.