Table 1: Pulmonary function tests.

Sr

Parameter

Reference

Pre-Dilatation

Measure

Pre-Dilatation

Percentage Reference

Post-Dilatation

Measure

Post-Dilatation

Percentage

Reference

Post-Dilatation Percentage Change

1

FVC

3.07

2.31

75

2.54

83

10

2

FEV1

2.6

2.20

84

2.30

88

5

3

FEV1/FVC

85

95

 

91

 

 

4

FEF 25-75%

3.02

2.95

98

2.74

91

-7

5

PEF

5.94

5.64

95

5.95

100

6

6

FET 100%

 

2.31

 

4.18

 

81

7

VC

3.07

2.31

95

2.54

83

 

8

TLC

4.64

 

 

 

 

 

9

RV

1.52

 

 

 

 

 

10

RV/TLC

33

 

 

 

 

 

11

FRC

2.40

 

 

 

 

 

12

DLCO

22.5

17.2

76

 

 

 

FVC: Forced Vital Capacity; FEV1: Forced Expiratory Volume in 1 second; FEF 25-75%: Forced Expiratory Flow over Middle One Half of the FVC; PEF: Peak Expiratory Flow; FET 100: Forced Expiratory Time; VC: Vital Capacity; TLC: Total Lung Capacity; RV: Residual Volume; FRC: Functional Residual Capacity; DLCO: Diffusion Capacity of the Lung for Carbon monoxide