Early onset cough Purulent mucus production Mild episodes of dyspnea
Key features of pulmonary emphysema include dyspnea that is often marked. late cough (after onset of dyspnea). scant mucus production. and marked weight loss. By contrast. chronic bronchitis is characterized by an early onset of cough (before dyspnea). copious purulent mucus production. minimal weight loss. and milder severity of dyspnea.
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