Siemens ADVIA 2120, Operator'S Manual, Page: 301 / 477

8-32 Methods
Location of Unlysed RBCs on PEROX Cytogram
Unlysed RBCs
with no
peroxidase activity appear
along the left side of the
PEROX cytogram.
e Method
Calculating Parameters
Reported Parameters
Parameter Explanation
WBCP RawWBC x (PeroxCalFactor
÷
[1-FracDT ])
%NEUT (100 x Neutrophil Count)
÷
PHA Cells
#NEUT (%NEUT
÷
100) x WBC
%LYMPH ([100 x Lymphocyte Count]
÷
PHA Cells) -
%BASO
#LYMPH (%LYMPH
÷
100) x WBC
%MONO (100 x Monocyte Count)
÷
PHA Cells
#MONO (%MONO
÷
100) x WBC
%EOS (100 x Eosinophil Count)
÷
PHA Cells
#EOS (%EOS
÷
100) x WBC
%LUC (100 x LUC Count)
÷
PHA Cells
#LUC (%LUC
÷
100) x WBC
The system uses data from the perox channel and the baso channel to derive the
Nucleated Red Blood Cell (NRBC) count (%NRBC and #NRBC). If nRBCs are
present, the system corrects the WBC results to account for them.
The system can also display Peroxidase channel and Basophil/Lobularity channel
WBC counts and the associated differential counts that have not been corrected
for NRBCs, even if NRBC counts are reported. The uncorrected counts are
designated by a lower case "u".