Part 6 · Respiratory Physiology

68. Oxygen Content, the Dissociation Curve, P50 Shifts and Oxygen Delivery

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Same concept, other depth: Foundation →

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CaO₂ = 1.34 × Hb × SaO₂ + 0.003 × PaO₂ ≈ 1.34 × 15 × 0.98 + 0.3 ≈ 20 mL/dL.
DO₂ = CO × CaO₂ × 10 ≈ 5 × 20 × 10 ≈ 1,000 mL/min.
V̇O₂ = CO × (CaO₂ − CvO₂) × 10 ≈ 250 mL/min; O₂ extraction ratio ≈ 25%; mixed venous PO₂ ≈ 40 mmHg, SvO₂ ≈ 75%.

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