Siemens ADVIA 2120, Operator'S Manual, Page: 123 / 477

Flags 6-5
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 System Related
•
Microcytic anemia
•
Macrocytic anemia
•
Iron-deficiency anemia
response to iron therapy
•
Transfusion
1. Check the RBC reagents.
2. Check the RBC hydraulics.
3. Check the RBC gain
4. Check the laser flowcell alignment
Atypical Lymphocytes (ATYP)
Definition
The presence of atypical lymphocytes is suspected.
An elevated %LUC value on the Perox cytogram may be due to the presence of
large atypical lymphocytes, blasts, and/or other large abnormal cells that are
peroxidase-negative. Large lymphocytes are defined as those that are larger than
the typical lymph population.
Blasts are classified independently on the Baso cytogram. When the %BLASTS
is subtracted from the elevated %LUC value, the remaining percentage is due to
atypical lymphocytes.
This flag is triggered if %LUC is 4.5 or greater, and the %LUC is greater than the
%BLAST by 1.5 or more.
Default trigger values for the three severity levels are:
+ %LUC = 4.5% to 7.4%
++ %LUC = 7.5% to 10.0%
+++ %LUC > 10.0%