Pulmonary Gas Exchange
| Definition: |
The exchange of OXYGEN and CARBON DIOXIDE between alveolar air and pulmonary capillary blood that occurs across the BLOOD-AIR BARRIER. |
| Notes: |
do not coord with OXYGEN or CARBON DIOXIDE unless particularly discussed; DF: PULM GAS EXCHANGE |
Pulmonary Gas Exchange Categories.
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Pulmonary Diffusing Capacity - The amount of a gas taken up, by the pulmonary capillary blood from the alveolar gas, per minute per unit of average pressure of the gradient of the gas across the BLOOD-AIR BARRIER. |
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Ventilation-Perfusion Ratio - The ratio of alveolar ventilation to simultaneous alveolar capillary blood flow in any part of the lung. (Stedman, 25th ed) |
Pulmonary Gas Exchange Definitions and Terms
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