Pathophysiology > Pulmonary Function Testing (PFT) Results > Flashcards
FEV1/FVC Ratio > 75%
No significant obstruction
FEV1/FVC Ratio b/w 60%-70%
Mild obstruction
FEV1/FVC Ratio b/w 50%-60%
Moderate obstruction
FEV1/FVC Ratio < 50%
Severe obstruction