most helpful answer my experience in care of copd patients included use of steroids to decrease inflammation antibiotics to treat infection and nebulizer treatments to improve oxygen levels. assuming there are no drug allergies to those medications my instinctive answer would be that the treatment for copd would not have had adverse effects on breathing. i see several of the same patients over and over again because their condition can worsen with weather changes. most of them are in their late 60's 70's and 80's and have other chronic health conditions as well. i would not want to make this response a "concrete yes" as an answer without fully investigating past medical history and so on. this is a general response only.
if you do not have copd but the er thinks you do and treat you accordingly can that adversly affect your breathing? . mom had an infarcted bowl took days for them to find it i told the er she had copd although she had no trouble breathing on her own except for one incident and was at that time diagnosed w/ copd. she never took oxygen or any breathing aids after the diagnosis but since she was diagnosed i told the er. when she died they put the 1st cause of death as breathing failure. septic shock infarcted bowl and heart failure i think were in there as 2nd and 3rd. .