Diatron Abacus 5 - Page 84

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Warning flags
Warning flags are raised when the analyzer detects a problem in the analysis process that may cause incorrect or suspect results or the
parameters in the valid blank measurement was too high.
Flag
Meaning
Cause
Action
A
4 Diff Alarm
The 4DIFF populations are not clearly distinguishable on the
scatter diagram.
If other parameters predict a ‘normal’ sample then perform a
cleaning procedure and repeat the measurement.
If 4DIFF results reported then treat them as ‘reduced reliability’. If
not all the parameters reported or the sample is predicted as
pathological then perform a manual count on a stained smear.
B
WBC blank is high
WBC > WBC blank high limit
Check cleanliness of the reagents and the ‘Abacus 5’. Perform
cleaning of the ’Abacus 5’. Repeat blank measurement. See
chapter: 7.2.5:Pneumatics start and blank measurement
Treat WBC result as ‘reduced reliability’.
b
RBC blank is high
RBC > RBC blank high limit
Check cleanliness of the reagents and the ‘Abacus 5’. Perform
cleaning of the ’Abacus 5’. Repeat blank measurement See
chapter: 7.2.5 :Pneumatics start and blank measurement
Treat RBC result as ‘reduced reliability’.
C
WBC clogging
Drift in the probe voltage of the WBC capillary. The two main
reasons for this drift are the misconnected reagent and the
clogging of the capillary.
Check the reagent connections.
Perform a cleaning procedure! See chapter: maintenance.
Please repeat the measurement.
c
RBC/PLT clogging
Drift in the probe voltage of the RBC capillary. The two main
reasons for this drift are the misconnected reagent and the
clogging of the capillary.
Check the reagent connections.
Perform a cleaning procedure! See chapter: maintenance.
Please repeat the measurement.
D
MON - NEU alert
The MON and NEU populations are not clearly distinguishable on
the scatter-gram.
If other parameters predict a ‘normal’ sample then perform a
cleaning procedure and repeat the measurement.
If MON, MON%, NEU, NEU% results reported then treat them as
‘reduced reliability’. If not all the parameters reported or the
sample is predicted as pathological then perform a manual count
on a stained smear.
E
EO - NEU alert
The EO and NEU populations are not clearly distinguishable on
the scatter-gram.
If other parameters predict a ‘normal’ sample then perform a
cleaning procedure and repeat the measurement.
If EO, EO%, NEU, NEU% results reported then treat them as
‘reduced reliability’. If not all the parameters reported or the
sample is predicted as pathological then perform a manual count
on a stained smear.
F
Differential blank high
More than 100 cells detected during the ’4Diff-blank’ procedure.
Check cleanliness of the reagents and the ‘Abacus 5’. Perform
flow cell cleaning of the ’Abacus 5’. Repeat blank measurement.
See chapter: 6.1.5 :Pneumatics start and blank measurement
Treat 4 Diff results as ‘reduced reliability’.