Siemens ADVIA 2120, Operator'S Manual, Page: 143 / 477

Flags 6-25
Baso Count Suspect (B-SUSP, BC)
Definition
The Baso Count Suspect flag is triggered if the percentage of events acquired in
the region of the Baso cytogram located above the upper MN/PMN threshold and
between channels 0 and 49 on the x axis exceeds 5.0%.
When cluster analysis is applied, the Baso Count Suspect region of the Baso
cytogram is located above the upper MN/PMN threshold. Events in this region
are not classified as basophils and are excluded from the basophil count. The
%BASO Suspect parameter is calculated from the Baso Count Suspect region
and is available in the Baso Parameter group on the Run Screen.
When histogram analysis is applied, the Baso Count Suspect region is located
above channel 21 on the y axis and in channels 0 and 49 on the x axis.
Baso Cytogram
(cluster analysis)
Baso Cytogram
(histogram analysis)
1 Basophils
2 BASO
Suspect
3 Baso Saturation
Results Flagged
%BASO, #BASO, %LYMPH, #LYMPH, %LUC, #LUC
A four-part WBC differential (basophils excluded) is reported with the measured
BASO values displayed and flagged, and with the LYMPH and LUC values also
flagged.
Corrective Action
Multiple occurrences of this flag, especially for consecutive samples, can indicate
a system problem. However, isolated instances of this flag are usually sample
related.
The following list of sample-related causes may not contain all conditions that
could cause this flag. There is no intention to associate the flag with specific
diagnoses.