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1. COPD Stage I:
Answer
MILD FEV1/FVC <70>
*Chronic cough/sputum production
*Pt unaware lung function is abnormal
2. COPD Stage II:
Answer
MODERATE FEV1/FVC <70>
FEV1 50-80%
SOB with exertion
Cough and sputum production present
3. COPD Stage III:
Answer
SEVERE FEV1/FVC < 70>
FEV1 30-50%
Greater SOB
Reduced exercise capacity Fatigue
Repeated exacerbations with impact on QOL
4. COPD Stage IV:
Answer
VERY SEVERE FEV1/FVC<70>
FEV1<30>
Resp. Failure
Cor Pulmonale (elevation of JVP and pitting ankle edema) QOL very impaired
Exacerbations may be life threatening
5. How does FEV1 decrease?:
AnswerÂÂ
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