Podcast 149 - P:F vs. A-a & Oxygenation Strategies
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A-a gradient, a/A ratio, and P: F ratio - are all different views of the same item. These formulas do not have a complete view of oxygenation. Oxygenation is a huge topic, and there are more common values that we use:
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How well is the patient saturating?
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Is there dyspnea?
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How do the lungs sound (auscultation) or look (POCUS)?
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Where is the patient on the OHCD?
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What does the ABG show?