Mind Bender of the day

#‎Excerpts‬ From 19th Edition Harrison
●●●●●●●●●●●●●●●●●●●●●●●●●●●●●●●●
### OBSTRUCTIVE And RESTRICTIVE LUNG DISEASE###

OBSTRUCTIVE:-
1. FEV1 DECREASED
2. FVC – normal or decreased
3. FEV1/FVC – DECREASED
RESTRICTIVE:
FEV1- NORMAL or decreased to some extent.
FVC- decreased to significant amount
FEV1/FVC- normal or increased
Note: FEV1/FVC is best parameter

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