Calculating Parameters - Siemens ADVIA 2120 Operator's Manual

Location of Unlysed RBCs on PEROX Cytogram
e Method

Calculating Parameters

Reported Parameters
Parameter
WBCP
%NEUT
#NEUT
%LYMPH
#LYMPH
%MONO
#MONO
%EOS
#EOS
%LUC
#LUC
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".
8-32
Unlysed RBCs
peroxidase activity appear
along the left side of the
PEROX cytogram.
Explanation
RawWBC x (PeroxCalFactor ÷ [1-FracDT ])
(100 x Neutrophil Count) ÷ PHA Cells
(%NEUT ÷ 100) x WBC
([100 x Lymphocyte Count] ÷ PHA Cells) -
%BASO
(%LYMPH ÷ 100) x WBC
(100 x Monocyte Count) ÷ PHA Cells
(%MONO ÷ 100) x WBC
(100 x Eosinophil Count) ÷ PHA Cells
(%EOS ÷ 100) x WBC
(100 x LUC Count) ÷ PHA Cells
(%LUC ÷ 100) x WBC
with no
Methods