• AGE and oxygen cascade
    • The AGE
      • PAO₂ = FiO₂ (PB - PH₂O) - PACO₂/R
      • RQ = respiratory quotient
        • RQ = VCO₂/VO₂
    • The oxygen cascade
      • Air
        • 0.21 x 101
          • = 21.2 kPa
      • Trachea
        • 0.21 (101-6.2)
          • = 19.9 kPa
      • Alveoli
        • 0.21 (101-6.2) - 5/0.8
          • = 13.7 kPa
      • V/Q mismatch
        • 0.15-0.3 kPa
      • Capillary
        • = 13.3 kPa
      • Mitochondria
        • 2-4 mmHg
      • Pasteur point