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Pulmonary Function Test (PFT) results for COPD and for RLD

	FVC	FEV1	FEV1 / FVC
COPD	Decreased. Mild: 65-80% of predicted Mod: 50-65% of predicted Severe: < 50% of predicted	Decreased. Mild: 65-80% of predicted Mod: 50-65% of predicted Severe: < 50% of predicted	Decreased. Mild: 65-80% of predicted Mod: 50-65% of predicted Severe: < 50% of predicted
RLD	Decreased. Mild: 65-80% of predicted Mod: 50-65% of predicted Severe: < 50% of predicted	Decreased. Mild: 65-80% of predicted Mod: 50-65% of predicted Severe: < 50% of predicted	Normal or increased. 80-100% of predicted

DeTurk, Cardiovascular and Pulmonary PT, p.153