Concept explainers
a.
To explain: The reason why the anterior–posterior diameter of the chest is increased in a patient with emphysema.
Concept introduction: Progressive lung disease that initially causes shortness of breath due to alveolar over-inflation is known as emphysema. The vital change in the emphysema is the destruction of alveolar walls and septae. Emphysema is classified on the basis of location of the changes in the respiratory system.
b.
To explain: The reason why hypercapnia may be a major problem in patients with emphysema.
Concept introduction: The progressive lung disease that initially causes shortness of breath due to alveolar over-inflation is known as emphysema. The vital change in emphysema is the destruction of alveolar walls and septae. Emphysema is classified on the basis of location of the changes in the respiratory system.
c.
To explain: The way in which cor pulmonale and secondary polycythemia develop in patients with emphysema.
Concept introduction: The progressive lung disease that initially causes shortness of breath due to alveolar over-inflation is known as emphysema. The vital change in emphysema is the destruction of alveolar walls and septae. Emphysema is classified based on the location of the changes in the respiratory system.
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Gould's Pathophysiology for the Health Professions, 6e
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