RADIOMETER ABL800 FLEX Reference Manual

6. Parameters ABL800 FLEX Reference Manual
List of equations, Continued
ctO
2
Eq. 27 [5]:
(
)
cpsFFtO O O O COHb MetHb tHb
2222
=×+×− − ×α 1 c
t
αO
2
is the concentrational solubility coefficient for O
2
in blood (here set to
9.83
x 10
−3
mmolL
–1
kPa
–1
at 37
o
C [5,19].
ctO
2
cannot be calculated on the basis of a default ctHb value.
Eq. 28:
ctO
2
(a−v
–
)
ctO
2
(a − v
–
) = ctO
2
(a) – ctO
2
(v
–
)
where ctO
2
(a) and ctO
2
(v
–
) are calculated from equation 27 for arterial and mixed
venous blood, respectively. The calculation requires two measurements.
Eq. 29 [7]:
BO
2
( )
BO c F F
2
1=×− −tHb COHb MetHb
BO
2
cannot be calculated on the basis of a default ctHb value.
Eq. 30 [8]:
ctO
2
(x)
(or c
x
)
The ODC is determined, as described in equations 46 - 47 in the section
Oxyhemoglobin Dissociation Curve.
cctO tO
22
() ()xa
i
=−
where
Eq. Description See…
30.1
(
)
ttHb
i
=×− ×
+××
−
cFFs
p
1
983 10
3
COHb - MetHb O
O(5)
2,i
2
.
+
30.2
pO
2
(5) = 5.00 kPa
30.3
S = ODC(P,A,T) Eq. 47
30.4
( )
P =×+
×− −
⎡
⎣
⎢
⎢
⎤
⎦
⎥
⎥
p
F
sFF
O(5)
COHb
OCOHbMetH
2
2,i
1
1
b
Eq. 46.9
30.5
(
)
( )
s
FF
FF
O
MetHb COHb
COHb MetHb
2,i
=
×− −
−−
S 1
1
Eq. 46.12
30.6
A = a
30.7
T = 37.0
o
C
Continued on next page
6-34

RADIOMETER ABL800 FLEX Specifications

General

Brand	RADIOMETER
Model	ABL800 FLEX
Category	Measuring Instruments
Language	English