CHRONIC OBSTRUCTIVE PULMONARY DISORDER COMMUNITY
Stages - FEV1

Stages - FEV1

COPD is divided into four stages based on FEV1 as a percentage of predicted. What I don't know is whether the stage determination is made with or without medication. I should think that medication is implied, but does anyone know for sure? Thank you for your replies.
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1277598_tn?1271097794
COPD is treated based on it's stage and not the other way around.  FEV1 and symptoms determine stage.  The most common staging system is the GOLD system.
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757137_tn?1316284120
I guess I wasn't clear. Is the FEV1 taken with or without the patient using his medication? In my case there would be a very big difference in the result.
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