An anesthetist is a medical professional who specializes in administering anesthesia to patients before, during, and after surgery. An anesthetist is also known as a NURSE anesthetist, as they are registered nurses with advanced training in the field of anesthesia. They are responsible for monitoring the patient's vital signs and adjusting the amount of anesthesia accordingly. An anesthetist is an important part of the surgical team, ensuring that the patient is safe and comfortable throughout the procedure.