RADIOMETER ABL90 FLEX - P50(St); Po (A-A); Po (A-A,T)

8. Parameters ABL90 FLEX reference manual
8-28
Eq. 21:
p50 is calculated for pH = 7.40, pCO
2
= 5.33 kPa, FCOHb = 0, FMetHb = 0,
FHbF = 0.
The ODC is determined as described in equations 46-47 in the section
Oxyhemoglobin dissociation curve (ODC), see equation 47 further in this
chapter.
p50(st) = ODC(S,A,T)
where
Description See…
S = 0.5 Eq. 46.11
A = a6 corresponds to pH = 7.40, pCO
2
= 5.33 kPa, FCOHb = 0,
FMetHb = 0, FHbF = 0
Eq. 46.13
T = 37.0 °C
Eq. 22:
222
O(A a)= O(A)- O(a)ppp
The calculation requires entering the sample type as "Arterial" or "Capillary".
Eq. 23:
pO
2
(A–a,T)=pO
2
(A,T)–pO
2
(a,T)
The calculation requires entering the sample type as "Arterial" or "Capillary".
Eq. 24:
2
2
2
O(a)
O(a/A)
O(A)
p
p
p

The calculation requires entering the sample type as "Arterial" or "Capillary".
Eq. 25:
2
2
2
O(a, )
O(a/A, )=
O(A, )
pT
pT
pT
The calculation requires entering the sample type as "Arterial" or "Capillary".
p50(st)
pO
2
(A-a)
pO
2
(A-a,T)
pO
2
(a/A)
pO
2
(a/A,T)