FEV1/FVC Ratio
Cross-source consensus on FEV1/FVC Ratio from 1 sources and 3 claims.
1 sources · 3 claims
Uses
How it works
Evidence quality
Highlighted claims
- The FEV1/FVC ratio is the diagnostic criterion for COPD. — Spirometry and COPD Diagnosis
- A normal FEV1/FVC ratio is 70% or greater. — Spirometry and COPD Diagnosis
- An FEV1/FVC ratio below 70% indicates COPD. — Spirometry and COPD Diagnosis