Vitalograph copd-6, Quick Start Manual

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Normal
Stage
I
Stage II
Stage III Stage IV
0 1 2 3
FE
V
₁/
FE
V
₆ R
at
io
a
nd
FE
V
₁ %
P
re
di
ct
ed
-
FE
V₁
/F
EV
₆ ≥
0
.7
-
FE
V₁
/F
EV
₆ <
0
.7
0
&
F
EV
₁ ≥
8
0
%
P
re
d.
-
FE
V₁
/F
EV
₆ <
0
.7
0
&
F
EV
₁ <
8
0
%
P
re
d.
-
FE
V₁
/F
EV
₆ <
0
.7
0
&
F
EV
₁ <
5
0
%
P
re
d.
-
FE
V₁
/F
EV
₆ <
0
.7
0
&
F
EV
₁ <
3
0
%
P
re
d.
FEV₁%
Pr
edic
te
d
≥80% <80% <50% <30%
Obstruc
tion
Inde
x
COPD
Classification