Revision C CASE B-19
2060290-201
Miscellaneous: Spirometry Reference Value Equations, Interpretation Modes, Measurements
Definition of Spirometry Test Values
FVC forced expiratory vital capacity
FEV05 forced expiratory volume in the first 0.5 seconds
FEV1 forced expiratory volume in the first second (same as
FVC, if exhalation time < 1 second)
FEV1/FVC FEV1 as a percentage of FVC
FEV3 forced expiratory volume in the first 3 seconds (same
as FVC, if exhalation time < 3 seconds)
FEV6 forced expiratory volume in the first 6 seconds (same
as FVC, if exhalation time < 6 seconds)
FEV1/FEV6 FEV1 as a percentage of FEV6
PEF peak expiratory flow
MEF75 maximal expiratory flow when 75% of FVC remain to
be exhaled
MEF50 maximal expiratory flow when 50% of FVC remain to
be exhaled
MEF25 maximal expiratory flow when 25% of FVC remain to
be exhaled
MMEF maximal mid-expiratory flow (between 25 and 75% of
FVC)
FIVC forced inspiratory vital capacity
FIV1 forced inspiratory volume in the first second
FIV1/FVC FIV1 as a percentage of FVC
PIF maximal inspiratory flow
MIF25 maximal inspiratory flow when 25% of FIVC have
been inhaled
MIF50 maximal inspiratory flow when 50% of FIVC have
been inhaled
MIF75 maximal inspiratory flow when 75% of FIVC have
been inhaled
MVV(ind) maximal expiratory ventilation volume in one minute
(indirectly determined: 30*FEV1)
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