What will be reversible damage?
In this question primarily we talking about asthma= We give salbutamol FEV1 becomes Normal Change of FEV1 before & after giving salbutamol (SABA) should be at least 12% to call it Bronchial Asthma.
Fev1 decrease by 50 % by SABA
Fev1 increase by 12% by SABA
Fev1 decrease by 25% by SABA
Fev1 decrease by 5% by SABA
COPD and Asthma