Fig. 2

Correlation between PPV and Pulm(pv-a) CO2 gap. Pulm(p-a) CO2; mixed venous to arterial carbon dioxide tension difference, PPV; pulse pressure variation
Correlation between PPV and Pulm(pv-a) CO2 gap. Pulm(p-a) CO2; mixed venous to arterial carbon dioxide tension difference, PPV; pulse pressure variation