Welch Allyn CardioPerfect Workstation SpiroPerfect Module - User Manual - Manual (Page 91)

CardioPerfect Workstation
SpiroPerfect Module
– User Manual
DIR 80012334 Ver. F 91 / 95
(selected) norm were based on males 85 or younger, the predicted values would be
extrapolated values.
FEF50/FIF50. The ratio of these two parameters. See FEF50 and FIF50.
FEF25. Forced expiratory flow (in L/s) at 25% of FVC.
FEF50. Forced expiratory flow (in L/s) at 50% of FVC.
FEF75. Forced expiratory flow (in L/s) at 75% of FVC.
FEF85. Forced expiratory flow (in L/s) at 85% of FVC.
FEF0.2-1.2. Forced expiratory flow average (in L/s) between 0.2 and 1.2 liters of FVC.
FEF25-75. Forced expiratory flow average (in L/s) during the middle half of FVC.
FEF75-
85 (“late” FEF). Forced expiratory flow average (in L/s) between 75% and 85% of
FVC.
FET. Forced expiratory time (in seconds). The elapsed time from the beginning of expiration
until a specified percentage of FVC.
FEV0.5. Forced expiratory volume (in liters) at 0.5 seconds.
FEV1. Forced expiratory volume (in liters) at 1 second. An important parameter because it
reflects the severity of COPD.
FEV1/FEV6. The ratio of these two parameters. See FEV1 and FEV6.
FEV1/FVC. See FEV1%.
FEV2. Forced expiratory volume (in liters) at 2 seconds.
FEV3. Forced expiratory volume (in liters) at 3 seconds.
FEV5. Forced expiratory volume (in liters) at 5 seconds.
FEV6. Forced expiratory volume (in liters) at 6 seconds.
FEV0.5%. FEV0.5 as % of FVC.
FEV1%. FEV1 as % of FVC. Same as FEV1/FVC. A parameter for a single FVC effort.
FEV1% formula. A user-selectable formula that determines the calculation method for a
test’s (not an effort’s) overall FEV1% value, which affects the automatic interpretation.
FEV2%. FEV2 as % of FVC.
FEV3%. FEV3 as % of FVC.
FEV5%. FEV5 as % of FVC.
FEV6%. FEV6 as % of FVC.
FEVt. Timed forced expiratory volume (in liters). Volume of air exhaled in the specified time
during an FVC effort.