Treatment of COPD
- Select stage of COPD -
COPD GOLD I ( FEV1/FVC < 70% and FEV1 ≥ 80%)
COPD GOLD II ( FEV1/FVC < 70% and 50% ≥ FEV1 < 80%)
COPD GOLD III ( FEV1/FVC < 70% and 30% ≥ FEV1 < 50%)
COPD GOLD IV ( FEV1/FVC < 70% and FEV1 < 30% or FEV1 < 50% and chronic respiratory failure)