Sgiannasi's List: Shunt

•      Respiratory  Quotient (RQ) is a metabolic  ratio between the carbon dioxide output and the oxygen uptake of all cells of  the body.
• gases are exchanged between the atmosphere and the alveolar air, and gases  diffuse between the alveolar air and the blood flowing through the pulmonary  capillaries.

• Quotient (RQ) is a metabolic ratio between the carbon  dioxide output

   

  (V°_CO2) and the oxygen uptake (V°_O2) defined for all body cells as a whole. In respiratory steady state, RQ  can be measured as the ventilatory  exchange ratio (R) (Fig. 14-1).
• The respiratory quotient (RQ) is compared to the measurable ventilatory  exchange ratio (R).
• . Blood-R-Curves
• For  a person in respiratory steady state, the R- value of the blood is equal to the R  -value of the alveolar gas (the gas-R)
• As respiratory gases are exchanged with a certain R- value (eg, R=1), the  passing blood must do the same.

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