RADIOMETER FLEX ABL90, Reference Manual

Page: 159 / 346

ABL90 FLEX reference manual 5. Sensors and optical system
5-31
Measurement - pO
2
On whole blood, pO
2
is adjusted with the sensitivity value and the measured pO
2
is therefore determined as follows:
2
2
O (meas)
O (sens,adjusted)
S
p
p 
The measured value is applied a 2
nd
order blood correction, to compensate for
the varying buffer value of blood, as a function of pO
2
tension. A second-order
correction is applied:
2
2 1 2 2 2 3
O (display) k O k O + k p p p  
NOTICE
:
During a measurement, the sensor technology used offers detection of
any air bubble in front of the pO
2
sensor that could lead to significant errors.
The following parameters are range checked:
 Sensitivity
 Sensitivity drift
 Status
Checks