Welch Allyn PneumoCheck Operating Instructions Manual page 14

Example of Acceptable (GOOD FVC) Effort:
RACE: 2 SEX: M
ACTUAL NORM %NORM ABN
FVC
. 2
1 0 . 8 1 IS:02
108
K n u d s o n 1 9 8 3
NORMS :
G o o d FVC m a n e u v e r .
FVC X l
S E C
10