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A member asked:
Did pft study dr said i dont have asthma showed no obstruction but when i did inhaler treatment (ibuteral) breathing in pft got better been havin shortness of breath for 10 mths inhaler dont help me .dr said no asthma ekg stress test normal advice?
A doctor has provided 1 answer
Review PFTs w/ doctor. In asthma FEV1 is less than 80% but I have seen people w/ SOB w/FEV1 of 90% - with inhaler they improve. Also I have found that FEF 25-75 , though a derived value, may also define a subset of individuals who have reactive airways if less than 90. https://www.verywellhealth.com/forced-expiratory-volume-and-asthma-200994 https://pubmed.ncbi.nlm.nih.gov/8092555/
Answered 11/30/2022
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