Abstract: The method and apparatus disclosed herein are directed to patient resuscitation simulation training and performance tracking. The disclosed method and apparatus includes a high-fidelity simulator with a real-time engine that can simulate real life situations and conditions for training and testing. The simulator also uses an infinitely-variable constraint-based real-time engine to eliminate the issue of “script memorization” by making each case random and/or unique. The simulator can also train users to recognize the characteristics of properly executed resuscitation interventions such as chest compressions and oxygen mask bagging techniques.