Fig. 1From: Pathophysiology of fluid administration in critically ill patientsDecision-making process at the bedside to guide and titrate fluid administration during an episode of acute circulatory failure. CCE critical care echocardiography, CO cardiac output, CRT capillary refill time, FC fluid challenge, ΔPCO2 venous-to-arterial CO2 tension difference, ScVO2 central venous oxygen saturationBack to article page