Asthama and PFT?

I'm hoping our resident expert (Dot the darling!) can help with this but wanted to post instead of PM in case others have similar questions but also in case others have ideas based on their clinic's handling. DS has just figured out the spirometer and in prep for next week's quarterly I wanted to see what how things changed pre and post brochialdialtor. When he was an infant and they did the "plastic box" test he had a pretty sharp improvement after the Xopenex which they said indicated an asthmatic component. he's been on Qvar daily for a couple years when he had a cough with running. So I'm wondering if that has stabilized the asthama somewhat so the results wouldn't be as stark. But they are definitely higher post. So I'm wondering does this say anything re an asthmatic component or do all with CF do better after a bronchialdialtor? We did 2 days with a pre and post Xopenex (10 minutes after Xopenex, but during that time we continued with his hyper-sal). Day 1: Pre Text Post Test FVC 1.32 1.45FEV1 FEV1 1.08 1.24 PEF 114 149 FEF25-75 .87 1.34 Day 2 FVC 1.47 1.56 FEV1 1.15 1.29 PEF 126 163 FEF25-75 1.02 1.18 So do folks know if it this pre-post bronchial dilator fairly "normal"? (Obviously I'm going to discuss with the doctor but wanted to thi...
Source: Cystic Fibrosis Adults Forum - Category: Respiratory Medicine Authors: Tags: Adults Source Type: forums