Normal (maroon) and obstructive disease (gray) flow-volume loops

0.07 MB·English

by  Kindred Grey

Peak expiratory flow
12
10
8
n
Normal
o
i
t
a 6
r
i
p
x FEV
1
E
4

)
c
e
s 2
/
s
r
e Volume (l)
0
t
i 2 4 6
l
(
w n
-2
o
o
i
l t Obstructive
F a
r
i -4 (e.g. COPD)
p
s
n
I
-6
VC
-8
-10