Vitalograph In2itive 2120 - Page 25

Vitalograph In2itive User Manual
Cat. No. 07514
Issue 5
Page 25 of 45 DT_0006-6
The following list supplies definitions of the parameters:
Parameter Definition
VC Vital capacity (L)
IVC Inspiratory vital capacity (L)
FIVC Forced inspiratory vital capacity (L)
FVC Forced vital capacity (L)
FEV.5 Forced expiratory volume after 0.5 seconds (L)
FEV.75 Forced expiratory volume after 0.75 seconds (L)
FEV1 Forced expiratory volume after 1 second (L)
FEV3 Forced expiratory volume after 3 seconds (L)
FEV6 Forced expiratory volume after 6 seconds (L)
PEF L/s Peak expiratory flow (L/sec)
PEF L/min Peak expiratory flow (L/min)
FEF0.2-1.2
(F02-12)
Mean forced expiratory flow in the volume interval
between 0.2 and 1.2 L of the test (L/sec)
FEF 25-75
(F2575)
Maximal mid expiratory flow: the mean FEF in the
time interval between 25% and 75% of the FVC
(L/sec)
FEF 75-85
(F7585)
Forced late expiratory flow: the mean FEF in the time
interval between 75% and 85% of the FVC (L/sec)
FEF 25 Forced expiratory flow at 25% of the FVC (L/sec)
FEF 50 Forced expiratory flow at 50% of the FVC (L/sec)
FEF 75 Forced expiratory flow at 75% of the FVC (L/sec)
FIV1 Forced inspiratory volume after 1 second (L)
PIF L/s Peak inspiratory flow (L/sec)
FIF 25 Forced inspiratory flow at 25% of the FVC (L/sec)
FIF 50 Forced inspiratory flow at 50% of the FVC (L/sec)
FIF 75 Forced inspiratory flow at 75% of the FVC (L/sec)
MVVind Maximum voluntary ventilation indirectly calculated
from the FEV1 (L/min)
FMFT Forced mid-expiratory flow time (sec)
FET Forced expiratory time (sec)
Vext Extrapolated volume (L)
FRC Functional residual capacity (L)
TV Tidal volume (L)
RV Residual volume (L)
TLC Total lung capacity (L)
IRV Inspiratory reserve volume (L)
ERV Expiratory reserve volume (L)