Anesthesia professionals, like CRNAsSometimes called a CRNA, nurse anesthesiologist, or nurse anesthetist, these are advanced practice registered nurses (APRN) who specialize in administering anesthesia for surgical, diagnostic, and therapeutic procedures. , are here to help you feel prepared and comfortable. You may also hear CRNAs called nurse anesthesiologists or nurse anesthetists. Learn what you need to know about how to get ready for anesthesia.