
68-16 Medical, Biomedical, and Health
For example, the Instrumentation Laboratory, Inc., IL 282 CO-oximeter uses an invasively drawn
sa
mple
an
d
me
asures
to
tal
he
moglobin,
ox
yhemoglobin,
CO
Hb,
Me
tHb,
an
d
ox
ygen
co
ntent
in
bl
ood
. e me
asurement
te
chnique
is op
tical
ab
sorption
. Fo
ur
wa
velengths
at 535
,
58
5
.2, 59
4
.5, an
d
62
6
.6 nm ar
e
ge
nerated
us
ing
a ho
llow
ca
thode
la
mp
. e ex
tinction
co
ecients
ar
e
us
ed
to ca
lcu-
late
th
e
co
ncentration
of RH
b,
O
2
Hb, COHb, and MetHb. e total hemoglobin (tHb) concentra-
tion
is ca
lculated
as th
e
su
m
of th
e
in
dividual
he
moglobin
gr
oups
. e ox
ygen
sa
turation
(S
a
O
2
) is
ca
lculated
as th
e
co
ncentration
of