Which of the Following Spirometric Measurements Is Sensitive to Small

question 11

Multiple Choice

Which of the following spirometric measurements is sensitive to small changes in airway caliber and decreases in value with increasing obstructive disease?

• A) Forced vital capacity (FVC)
• B) Forced expiratory flow between 200 and 1200 mL of the FVC (FEF 200-1200)
• C) Mean forced expiratory flow during the middle half of the FVC (FEF 25-75)
• D) Forced expiratory volume in 1 second (FEV₁)

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