Figure 84-6 The METI instructor/operator's station (IOS) allows full control over the model-based physiology and pharmacology of the "patient." The numbers over the mannequin show the status of all physiologic variables of the model (e.g., blood gases, cardiocirculatory parameters). At the IOS more than one patient can be run at a time and dynamically allocated to different mannequins. The IOS is the same for the Human Patient Simulator as for the Emergency Care Simulator.