A 53-Year-Old Man's Dyspnea Is Now Being Assessed

A 53-year-old man's dyspnea is now being assessed. While the graph on the left depicts the work of breathing vs respiratory rate in a healthy person, the graph on the right illustrates how the patient's work of breathing fluctuates with respiratory rate. In both plots, the minute ventilation is constant and equal. Which of the following is the most likely diagnosis in this patient?

A) Alpha-1 antitrypsin deficiency
B) Anxiety disorder
C) Asthma
D) Goiter
E) Pulmonary fibrosis

Correct Answer:

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