You perform spirometry on a patient and obtain the following…
You perform spirometry on a patient and obtain the following results: Predicted Values Measured Values % Predicted FVC 7.20 liters 7.06 liters 98 % FEV1 5.70 liters 2.38 liters 42 % FEV1/FVC 80 % 34 % 43% The most likely reason for these spirometry measures is: