Patent US 5,385,474

A method of simulating anesthesiology and operating room conditions including the steps of displaying initial patient simulated vital sign information from a memory to signify an initial patient condition, randomly modifying the displayed patient vital sign information according to a script matrix in a manner analogous to that in which a patient's vital signs would be effected in the operating room by drugs and other external effects, thereby indicating a deteriorating condition, displaying user options, evaluating the timeliness and appropriateness of user input selections from the options in response to the changes in patient vital sign data, and causing the patient vital sign information to improve to its initial state or deteriorate to a critical state in accordance with the successive script blocks in the script matrix depending upon the user's response and timeliness.