Pulmonary Function tests (PFT’s) are performed to detect evidence of airway inflammation commonly seen in asthma. By doing these tests prior to and after inhaling albuterol, we look for airway reversibility. Our breathing machines are standardized for age 5 and above, althought we will occasionally challenge children starting at 4-4 ½ years old.
These tests are important to help define asthma as well as checking for clinical response to inhaled medications. PFT’s also interpret flow volume loops which may detect evidence of vocal cord dysfunction. Several PFT’s done over months and years will help predict future outcomes and help confirm whether a patient is responding to therapy.