Hypoxemia in emphysema occurs because destroyed alveolar air sacs also destroy their capillaries, decreasing the total lung surface area available for gas exchange.
Wenn alveoläre Luftsäcke zerstört werden, werden auch die darin enthaltenen Kapillaren zerstört. Die Zerstörung der alveolären Luftsäcke und ihrer Kapillaren verringert die für den Gasaustausch verfügbare Gesamtoberfläche in den Lungen.
| Front | Why might hypoxemia (PaO2 < 60 mmHg) be a complication of emphysema? |
|---|---|
| Back | When alveolar air sacs are destroyed, the capillaries housed within them are destroyed. Destruction of the alveolar air sacs and their capillaries decreases the total surface area in the lungs available for gas exchange. |
Learn with these flashcards. Click next, previous, or up to navigate to more flashcards for this subject.
Next card: Reversible airway bronchoconstriction due allergic stimulus asthma
Previous card: Clinical features emphysema dyspnea cough minimal sputum prolonged
Up to card list: Chapter 9: Respiratory Tract Pathology