Figure 2From: End expiratory oxygen concentrations to predict central venous oxygen saturation: an observational pilot studyRegression analysis of the EtO2 versus measured ScVO2. The Y-axis values were the average of four deep exhalation end tidal partial pressure of oxygen measurements and the X-axis values were the average of two duplicate oxygen saturation measurements of central venous blood specimens obtained from a hemodialysis catheter. EtO2 – end-tidal oxygen; ScVO2 – central venous oxygen saturation.Back to article page