RADIOMETER ABL90 FLEX User Manual

ABL90 FLEX reference manual 8. Parameters
8-39
The actual position of the ODC at 37 C for a given sample is, in principle,
determined in two steps:
1.
The calculation of the combined effect on the ODC position at 37 C of all
known causes for displacement (= ac in equation 46.13), and based on
this position.
2.
The computation by a numerical method of the actual position of the
ODC curve by shifting it to pass through the known set of coordinates
(P
0
, S
0
).
Eq. Description
46.13
a = ac + a6
46.14 ac = a1 + a2 + a3 + a4 + a5
46.15
a1 = 0.88  (pH  7.40)
46.16
2
CO
a2 0.048 ln
5.33
p

46.17
a3 0.7 MetHbF 
46.18




a4 0.06 0.02 HbF DPG 5Fc  
46.19
a5 0.25 HbFF 
Step Description
I: pO
2
, sO
2
can be used.
If sO
2
> 0.97, the calculation is based on II or III – see
below.
Coordinates (P
0
, S
0
) are calculated from equations
(46.9) and (46.11).
If FCOHb and FMetHb are not known, the default values
are used.
The ODC is shifted from the reference position to a
position that corresponds to the effect of all measured
parameters according to step I.
The magnitude of the shift is "ac".
The ODC is then further shifted to pass through the
point (P
0
, S
0
).
The magnitude of the shift is "a6".
The actual ODC
position
Determining
the actual
displacement

RADIOMETER ABL90 FLEX Specifications

General

Type	Blood Gas Analyzer
Analysis Time	35 seconds
Parameters Measured	pH, pCO2, pO2
Sample Volume	65 μL
Connectivity	Ethernet, USB
Calibration	Automatic
Data Management	Integrated data management system
Sample Type	Whole blood, plasma, serum
Power Requirements	100-240 V AC, 50-60 Hz, 150VA
Operating Temperature	15-32 °C (59-90 °F)
Operating Humidity	20-85% relative humidity, non-condensing