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. 2000 Jun 27;4(4):249–254. doi: 10.1186/cc701

Figure 1.

Figure 1

Correlation between gastric juice and tonometric PCO2. We performed 112 pairs of measurements of gastric juice and tonometric PCO2 in 15 critical care patients under different haemodynamic and oxygen transport conditions. The linear regression coefficient is significant. However, the slope value indicates systematic overestimation of gastric juice PCO2 in relation to saline PCO2.