Available Testing

Complete Pulmonary Function Testing

  • Spirometry: Pre & Post Bronchodilator, flow volume loop
  • Lung Volumes: measured by inert gas dilution or nitrogen washout can clarify whether a restrictive or obstructive process is the cause of a decreased Forced Vital Capacity (FVC) and Forced Expiratory Volume in the 1st second (FEV1). 
  • Diffusing Capacity (DLCO): Following ATS PFT algorithm, DLCO is useful in delineating PV: pulmonary vascular; CW: chest wall; NM: neuromuscular; ILD: interstitial lung diseases; CB: chronic bronchitis once Spirometry and Lung Volumes have been considered.


  • FVC, FEV1, FEF25-75%, expiratory limb of flow volume loop

Spirometry + Flow Volume Loop

  • FVC, FEV1, FEF25-75%, expiratory and inspiratory limb of flow volume loop

Fractional exhaled Nitric Oxide (FeNO)