The doc wanted us back to test for PFT's after 3 weeks of antibiotics. They wanted to see if they could get his lung function back higher where it used to be. The first time he blew, it was Fev1 71%. Yikes! They are allowed to try 8 times, to see if it will get higher. Thankfully, it did. And the technician allowed him to blow a 9th time, which resulted in 92%. Better. I know it can get higher, so I am praying that being extremely active through the summer will help raise it up more.