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Basic Concepts. Reduced ventilation can occur for a number of reasons. This includes pneumonia, whereby the alveoli are filled with exudate, limiting the ability to maintain ventilation.
Asthma and COPD may also result in a reduction in ventilation, as well as respiratory distress syndrome of the newborn, whereby reduced surfactant production results in multiple collapsed alveoli, limiting its ventilating capability. The effect of reduced ventilation is hypoxia.
Airways and lungs
However, as the rest of the lung can still remove CO2, hypercapnia does not occur. Thus, the net effect of this is type 1 respiratory failure. Pulmonary embolism can result in reduced perfusion of the lungs. Areas of the pulmonary circulation are obstructed, limiting blood flow to alveoli.
Thus, the alveolar partial pressures of both oxygen and carbon dioxide are determined by the.
If the in an alveolar-capillary unit increases , the delivery of oxygen relative to its removal will increase, as will the removal Forgot Password? What is MyAccess? Otherwise it is hidden from view. Forgot Username?
Diffusion-limited Gas Exchange | Pathway Medicine
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Airways and lungs
Davis AT Collection. Davis PT Collection. Murtagh Collection. About Search. Enable Autosuggest. Home Books Pulmonary Physiology, 8e. Previous Chapter.
Related Ventilation, Blood Flow, and Diffusion
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