Which of the following tests is more sensitive than the FEV₁ in detecting airway obstruction?

Name: Which of the following tests is more sensitive than the FEV₁ in detecting airway obstruction?
Brand: Quizplus
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Question

Quizplus · Accepted Answer

The FEF₂₅% tₒ ₇₅% measures the average flow rate during the middle half of the expiratory curve. It is not as reproducible as the FEV₁, so the normal range is 65% to 100% of predicted. It may be abnormal when the FEV₁ is normal, so it is more sensitive to airway obstruction than is the FEV₁.

Which of the Following Tests Is More Sensitive Than the FEV₁