Which of the following is not a sign or symptom of emphysema?

Question

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Emphysema, a type of chronic obstructive pulmonary disease (COPD), primarily affects the air sacs in the lungs, leading to symptoms such as a barrel-shaped chest, lungs remaining expanded after exhalation, and evidence of weight loss due to the increased effort to breathe. A chronic cyanotic (blue) complexion is more characteristic of chronic bronchitis, another type of COPD, where there is significant obstruction of airflow leading to poor oxygenation of the blood, rather than emphysema where the primary issue is with gas exchange at the level of the damaged air sacs.

Which of the Following Is Not a Sign or Symptom