Conversation: The conversation between human and AI assistant.
[|Human|] I have severe copd my last pft was 28 percent but i am short of breath all the time even just walking around the house and light headed with chest pain, I do have history of chf because of the copd but my o2 sats are always good, why is that and should i be concerned?
[|AI|]  Thanks for your question on Chat Doctor. I can understand your concern. 28% on PFT report is suggestive of very severe obstructive Airway defect (very severe COPD). And symptoms like breathlessness on walking, chest pain are suggestive of further worsening of COPD. So better to get done fresh PFT (Pulmonary Function Test). You may need newer better inhaled bronchodilators (indacaterol and glycopyronium) for symptomatic relief. Hope I have solved your query. I will be happy to help you further. Wish you good health. Thanks.