Ref Pre %Ref Post %Ref
FEV1 1.95 1.39 71 1.42 73
FEV1/FVC 83 65 67
What number do I look at ? The 65, the 71? I'm very confused. I've tried to understand from reading but I don't get it. Can one of you who is a respiratory therapist tell me what number I should take. So sorry I'm so dense.