Clinical
P/F Ratio: Formula, Normal Range & ARDS Chart
Calculate the P/F ratio from PaO₂ and FiO₂, review expected values, and interpret Berlin ARDS oxygenation thresholds with worked examples.
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4 articles found in #oxygenation.
Clinical
ROX Index Explained: HFNC Success, Failure Risk, and Bedside Use
Learn how the ROX index helps assess HFNC response, estimate failure risk, and guide escalation decisions using SpO₂, FiO₂, and respiratory rate.
7 min readRead article
Clinical
Causes of Hypoxemia Explained
Learn the major causes of hypoxemia including V/Q mismatch, shunt, diffusion impairment, hypoventilation, and low FiO₂ with clear clinical explanations.
8 min readRead article
Clinical
A–a Gradient Explained: Alveolar-Arterial Oxygen Difference
Learn how to calculate and interpret the A–a gradient, what is normal, and how it helps identify causes of hypoxemia like V/Q mismatch, shunt, and diffusion impairment.
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