I was diagnosed with copd 5 years ago,,had pulm,,test,,,,,recently , had another lung function test,,,the doctor showed me the lsit with all the numbers ,he said a gp would look and see nothing,,but he pointed out 1 number was 176 he said that shoud be below 100,,that number shows mild to moderate emphysema,,but said he could not tell me my lung capcity,it that number bad??? ,,Im taking adavair 500/50 and spiriva,,,,