Europe PMC

The Influence of Hypercapnia and Atmospheric Pressure on the Pao2/Fio2 Ratio-Pathophysiologic Considerations, a Case Series, and Introduction of a Clinical Tool.

The ratio between Pao2 and Fio2 is used as a marker for impaired oxygenation and acute respiratory distress syndrome classification. However, any discrepancy between Fio2 and o2 fraction in the ...
Europe PMC

Rationale and limitations of the SpO2/FiO2 as a possible substitute for PaO2/FiO2 in different preclinical and clinical scenarios.

Although the PaO 2/FiO 2 derived from arterial blood gas analysis remains the gold standard for the diagnosis of acute respiratory failure, the SpO2/FiO2 has been investigated as a potential ...