Anesthesia physicians, Obstetrics and Gynecology physicians, residents, and nurses involved in the care of potential total abdominal hysterectomy (TAH) candidates will be be informed about the study by primary investigators through memos, presentatations, departmental meetings. Potential subjects will be identified by these physicians, residents, and nurses involved in the care of TAH patients. Study personnel will be contacted to determine patient eligibility for the study.