
66-6 Medical, Biomedical, and Health
e strain gage tubes (Figure 66.4) are positioned around the lower part of the leg; an inatable cu
is pl
aced
ar
ound
th
e
up
per
pa
rt
(a
bove
th
e
kn
ee)
an
d
in
ated
to 40
–50
mm
Hg,
th
at
is
,
ab
ove
th
e
ve
nous
pr
essure
th
at
wi
ll
ca
use
th
e
ou
tow
of bl
ood
to ce
ase
. e in
creased
vo
lume
of th
e
le
g
is th
erefore
pr
o-
portional
to th
e
ar
terial
in
ow
. e la
tter
is de
termined
fr
om
th
e
in
itial
sl
ope
. Fl
ow
is vo
lume
in
crease
pe
r
t
ime
u
nit
.
Wh
en
th
e
cu
pr
essure
is re
leased,
bl
ood
wi
ll
o
w
ou
t
fr
om
th
e
le
g
vi
a
th
e
ve
ins
. e ti
me
co
urse
of
th
e
vo
lume
ch
ange
wi
ll
be re
lated
to ve
nous
fu
nction
. If th
ere
is ve
nous
th
rombosis,
th ...