Immature Granulocytes (Ig) - Siemens ADVIA 2120 Operator's Manual

Sample Related
•
Iron deficiency anemia·
•
Chronic inflammatory
diseases·
•
Thalassemia·
•
Sideroblastic anemias

Immature Granulocytes (IG)

Definition
The presence of immature granulocytes is suspected.
The Immature Granulocytes flag is triggered if [(%NEUT + %EOS) - %PMN]
5.0%.
If present, Immature Granulocytes appear in the neutrophil and eosinophil areas
on the Perox cytogram and in the mononuclear (MN) area on the Baso cytogram.
On the BASO cytogram, the eosinophils and neutrophils reside within the
Polymorphonuclear (PMN) area. Subtracting the %PMN from the sum of the
%NEUT and %EOS provides an estimate of the %Immature Granulocytes.
Default trigger values for the three severity levels are:
+
++
+++
Lymph
1
6-10
[(%NEUT + %EOS) - %PMN] = 5.0% to 7.4%
[(%NEUT + %EOS) - %PMN] = 7.5% to 10.0%
[(%NEUT + %EOS) - %PMN] > 10.0%
Perox Cytogram
LUC Mono
2 3
MN (6) = Lymphs (1) + LUCs (2) + Monos (3)
PMN (7) = Neut (4) +Eos (5)
System Related
1. Check RBC reagents.
2. Check the laser sample delivery.
3. Check the RBC gains.
4. Check the laser flowcell alignment.
Baso Cytogram
Neut 5 Eos
4
6 MN 7 PMN
Flags
≥