Key result
The PaO2/FiO2 ratio is a weak predictor of mortality for critically ill patients, with unclear cut-offs to guide prognosis or predict mortality.
Why the study?
Is the PaO2/FiO2 ratio a reliable predictor of mortality in critically ill patients?
Is the PaO2/FiO2 ratio a reliable predictor of mortality in critically ill patients?
Answers are grounded in this paper and cite their sources.
The PaO2/FiO2 ratio has limitations as a prognostic tool for mortality in critically ill patients, despite its widespread use in ARDS severity criteria and treatment algorithms.
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Fernandes et al. (2026) conducted an editorial in Acute respiratory failure and ARDS. PaO2/FiO2 ratio (PFR) was evaluated on Mortality. The PaO2/FiO2 ratio is a weak predictor of mortality for critically ill patients, with unclear cut-offs to guide prognosis or predict mortality.
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