The pulmonary function tests are explained in depth in this video with 1. A step-by-step approach for evaluating various Spirometry results 2. To simplify, apply the 70, 80, 90 rule. 3. Describes how to arrive at a conclusive diagnosis. 4. Described the three spirometries of various lung diseases. #pfts #obstructive_lung_diease #Restrictive_lung_disease #PFTs_interpretation #pulmonology