Classification Of COPD Flashcards
Stage 1 aka
Mild
Stage 2 aka
Moderate
Stage 3 aka
Severe
Stage 4 aka
Very severe
Stage 1-4
FEV1/FVC
All <70%
Stage 1 FEV1
FEV1 > or = 80% predicted
Stage 2 FEV1
50%
Stage 3 FEV1
30%
Stage 4 FEV1
FEV1<30% predicted
OR
FEV1<50% with chronic respiratory failure symptoms
Symptoms of stages 1-3?
With or without chronic symptoms
Symptoms of stage 4?
PaO2<60
PaCO2 >50
Cor pulmonale
Increased jugular venous distention
Functional abilities with stage 1
Individuals may be unaware that lung function is abnormal
Functional abilities stage 2
Individuals typically seek medical attention b/c of chronic respiratory symptoms or exacerbation of disease
Functional abilities stage 3
Individuals experience greater SOB, reduced exercise capacity, fatigue, impact on QOL
Functional abilities stage 4
QOL very impaired, exacerbation may be life threatening