Welch Allyn CP 200 Spirometry Option - User Manual User Manual
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Glossary
Welch Allyn CP 200 Spirometry Option
effort. A single spirometry maneuver, for example, one blow. A single test comprises multiple efforts. See
.
ERS. European Respiratory Society.
ERV. Expiratory reserve volume (in liters). The maximum volume that can be expired from the level of the
functional residual capacity (FRC). See also
extrapolation. The practice of applying a norm’s formula to a patient who doesn’t fit that norm’s
demographics. For example, if you were testing an 88-year-old man, and the primary (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
and
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/FVC. See
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.