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Review Question - QID 106820

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QID 106820 (Type "106820" in App Search)
A 59-year-old man with an extensive smoking history presents to the ED with fever, chills, dyspnea, and productive cough. Although the ED resident physician is concerned about an exacerbation of underlying chronic obstructive pulmonary disease (COPD), she conducts a chart review for recent pulmonary function tests. Sample flow-volume loops are shown below, the blue curves indicating normal loop shape and the purple curves indicating abnormal loop shape. Which loop suggests COPD?
  • A
  • B
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  • D
  • E
  • A
  • B
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  • D
  • E