PULMONARY FUNCTION TESTS

Pulmonary Function Tests Interpretation FEV₁/FVC greater than equal to LLN D_L. _co Normal Yes No Pulmonary Hypertension Anemia Carboxyhemoglobinemia TLC Restriction Chest wall or Neuromuscular Disorders Interstitial Lung Disease Obstruction Mixed Defect Asthma or Non-Empysematous COPD Emphysematous COPD.