What is the best indicator of an obstructive lung disorder? A) FEF_200-1200 B) FEV₁/FVC C) TLC D) FRC

Question

Quizplus · Accepted Answer

The best indicator of an obstructive lung disorder is the FEV1/FVC ratio. In obstructive lung diseases, such as asthma or COPD, the FEV1 (Forced Expiratory Volume in the first second) is significantly reduced due to airway obstruction, making the FEV1/FVC ratio (Forced Vital Capacity) lower than in healthy individuals.

What Is the Best Indicator of an Obstructive Lung Disorder