The Pulmonary Function Test - Doctor Walker's Approach

Pulmonary function test can be a confusing diagnosis, says doctor walker. He explains how to interpret the numbers and what you need to look for in order to diagnose obstructive lung disease. Doctor Walker: I think this is partly analogous to reading a chest x ray. Everyone may have their own approach. There's no one right answer, but you want to go through it in a way that's methodical for you so that you don't miss anything.