5. Sensors and optical system ABL90 FLEX reference manual
5-48
The following parameters will not be calculated:
Parameter Is not calculated if…
sO
2
, FCOHb, FMetHb,
FHHb, FO
2
Hb
ctHb < 1 mmol/L
sO
2
ceHb = cHHb + cO
2
Hb < 0.75 mmol/L
ctBil ctHb > 14.27 mmol/L
The following conditions are required to perform HbF suppression:
Parameter or Feature
Requirement
ctHb > 5 mmol/L
FCOHb < 20 %
FMetHb < 10 %
HbF correction –
Enabled for levels
>20%
cO
2
HbF/ctHb should be more than 0.2.
HbF correction –
Enabled for all levels
No lower limit value for cO
2
HbF is required, i.e.
even adult blood samples will be corrected for HbF.
It may be of value when analyzing blood samples
from newborns who have received adult blood
transfusion. In these cases FHbF can be lower than
20 % and significant deviations of oximetry
parameters and bilirubin can occur.
HbF correction –
Disabled
No HbF corrections made.
HbF suppression has
been activated
The FHbF value is normally, but not always,
displayed by the analyzer.
Message "Oxi compensated for HbF" is displayed.
sO
2
< 50 % Message "FHbF measurement is not possible" is
displayed by the analyzer, if a HbF suppression has
been activated, and the
FHbF estimation from
cO
2
HbF is too uncertain.
Restrictions
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