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22
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DT_0006 Issue 16
A Global Leader in Respiratory Solutions
FEV3/VC
FEV6
Ratio FEV3 of FVC
Forced expiratory volume after 6 seconds (L)
FEF25
Forced expiratory flow at 25% of the FVC (L/sec)
FEF50
Forced expiratory flow at 50% of the FVC (L/sec)
FEF75
Forced expiratory flow at 75% of the FVC (L/sec)
FEF0.2-1.2
Mean forced expiratory flow in the volume interval
between
0.2 and 1.2 L of the test (L/sec)
FEF 25-
75/FVC
Ratio FEF25-75 of FVC
FIV1/FVC
Ratio FIV1 of FIVC
FIV1
Forced inspiratory volume after 1 second (L)
FIV1/FIVC
Ratio FIV1 of FIVC
PIF L/min
Peak inspiratory flow (L/min)
FIF25
Forced inspiratory flow at 25% of the FVC (L/sec)
FIF50
Forced inspiratory flow at 50% of the FVC (L/sec)
FIF75
Forced inspiratory flow at 75% of the FVC (L/sec)
FIF50-
FEF50
Ratio FIF 50% of FEF 50%
FEF50-
FIF50
Ratio FEF 50% of FIF 50%
MVVind
Maximum voluntary ventilation indirectly
calculated from
the FEV1 (L/min)
Rind
Airways Resistance Indirect measurement.
FEV1/EVC
BEV/FVC
Ratio FEV1 to EVC
Ratio BEV to FVC
BEV
Back Extrapolated Volume
EOTV
End of test Volume
tRise
Rise Time
tHes
Hesitation Time
