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Default trigger values for the three severity levels are:
+
++
+++
The %BLASTS value is intended for flagging and laboratory purposes only. The
%BLASTS value is not to be reported as a patient result.
Results Flagged
none
Possible Causes
The following list of sample-related causes may not contain all conditions that
could cause this flag.
Multiple occurrences of this flag, especially for consecutive samples, can indicate
a system problem. However, isolated instances of this flag are usually sample
related.
Sample Related
•
Acute leukemias
•
Chronic leukemias
•
Lymphomas
•
Myelofibrosis
•
Refractory anemia with
excess blasts (RAEB)
•
Neonatal samples
Flags
%BLASTS 1.5% to 5.0%
%BLASTS > 5.0% to 10.0%
%BLASTS > 10.0%
Perox Cytogram
1 LUC area
Baso Cytogram
2 BLASTS area
System Related
1. Check the perox and baso reagents
2. Check the delivery of SHEATH/RINSE.
3. Check the perox hydraulics.
4. Check baso hydraulics.
5. Check the perox flowcell alignment.
6. Check the laser flowcell alignment.
7. Check the pressure and vacuum readings.
8. Check the baso and perox gains.
6-7
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Troubleshooting
