Predicted Value Observed Pre % Predicted
FVC Liters 3.29 1.66 50
FEV1 Liters 2.61 1.25 47
FEV1/FVC % 76 75 98
FEF25-75 L/S 2.55 1.14 44
PEFR L/S 6.05 3.46 57
FET Secs - 5.42 -
FIVC L - 1.75 -
PIFR L/S 4.04 3.08 76