An anesthetist assistant is a healthcare professional who works with anesthesiologists to provide patient care before, during and after surgery. They help monitor the patient's vital signs, administer anesthesia medications and fluids, assist in positioning the patient for surgery, and provide support to the anesthesiologist throughout the procedure. Anesthetist assistants also play a role in post-operative recovery by monitoring patients' vital signs and administering pain medication as needed. They may also provide patient education and support to help ensure a successful recovery.