Introduction
Operator’s Manual V1.1 • EasyOne Air • EasyOne Connect
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FEV
.5
Forced expiratory volume after 0.5 seconds L
FEV
.5
/FVC Ratio of FEV
.5
to FVC –
FEV
.75
Forced expiratory volume after 0.75 seconds L
FEV
.75
/FVC Ratio of FEV
.75
to FVC –
FEV
1
Forced expiratory volume after 1 second L
FEV
1
/FEV
6
Ratio of FEV
1
to FEV
6
–
FEV
1
/FIV
1
Ratio of FEV
1
to FIV
1
–
FEV
1
/FVC Ratio of FEV
1
to FVC –
FEV
1
/VC Ratio of FEV1 to VC (VC taken from SVC test) –
FEV
3
Forced expiratory volume after 3 seconds L
FEV
3
/FVC Ratio of FEV
3
to FVC –
FEV
6
Forced expiratory volume after 6 seconds L
FIF
25
Forced inspiratory flow at 25% of vital capacity—synonymous with MIF
75
L/s
FIF
50
Forced inspiratory flow at 50% of vital capacity—synonymous with MIF
50
L/s
FIF
50
/FEF
50
Ratio of FIF
50
to FEF
50
–
FIF
75
Forced inspiratory flow at 75% of vital capacity—synonymous with MIF
25
L/s
FIV
.25
Forced inspiratory volume after 0.25 seconds L
FIV
.5
Forced inspiratory volume after 0.5 seconds L
FIV
1
Forced inspiratory volume after 1 second L
FIVC Forced inspiratory vital capacity L
FVC Forced expiratory vital capacity L
FVC
6
Forced expiratory vital capacity after 6 seconds L
IC Inspiratory capacity from end of tidal breathing L
IRV Inspiratory reserve volume L
Lung Age calculated age of the average healthy individual who would perform similar to tested
patient on spirometry
Years
MEF
20
Mean expiratory flow at 80% of vital capacity—synonymous with FEF
80
L/s
MEF
25
Mean expiratory flow at 75% of vital capacity—synonymous with FEF
75
L/s
MEF
40
Mean expiratory flow at 60% of vital capacity—synonymous with FEF
60
L/s
MEF
50
Mean expiratory flow at 50% of vital capacity—synonymous with FEF
50
L/s
MEF
60
Mean expiratory flow at 40% of vital capacity—synonymous with FEF
40
L/s
MEF
75
Mean expiratory flow at 25% of vital capacity—synonymous with FEF
25
L/s
MEF
90
Mean expiratory flow at 10% of vital capacity—synonymous with FEF
10
L/s
MIF
25
Mean inspiratory flow at 75% of vital capacity—synonymous with FIF
75
L/s
MIF
50
Mean inspiratory flow at 50% of vital capacity—synonymous with FIF
50
L/s
MIF
75
Mean inspiratory flow at 25% of vital capacity—synonymous with FIF
25
L/s
MMEF Mean mid-expiratory flow—synonymous with FEF
25-75
L/s
MVV Maximum voluntary ventilation L/min
Parameter Parameter description Unit
Parameters