2 types of COPD
2. emphysema
def. CB
chronic cough of sputum for at least 3 months for 2 years
def. emph
permanent enlargement of airspaces distal to terminal branches
risk factors
Sx
any combo of cough, sputum prod., and dyspnea
7 signs
Dx testing
Steps in Tx
Tx for acute exacerbations