One approach to circulation and blood flow in the critical care unit

Figure 7 Modified cardiac function curve representing the central venous pressure measured in the clinical setting by superimposing Guyton’s model of venous return and Frank-Starling contractility curve. CO: Cardiac output; CVP: Central venous pressure; PRA: Right atrial pressure; VR: Venous return; PMS: Mean systemic filling pressure. Adapted from[62].