Causes of hypoxemic respiratory failure? - V/Q mismatch, alveolar hypoventilation/pulmonary shunt,
impaired gas diffusion, increased altitude
Causes of hypercapnic respiratory failure? - Decreased RR, decreased tidal volume, increased dead space
Alveolar hypoventilation
21% O2 = _ PaO2 - 90 mm Hg
30% O2 = _ PaO2 - 150 mm Hg
40% O2 = _ PaO2 - 200 mm Hg
50% O2 = _ PaO2 - 250 mm Hg
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