CHAPTER 11 Technical Information
Sysmex XE-5000 Instructions for Use 11-5
Revised July 2007
Accuracy (blood cell
differentiation)
Accuracy is expressed as the coefficient of correlation to the comparison method for
analysis of at least 100 samples (at least 20 samples for NRBC) of normal blood (for
NRBC, blood in which nucleated RBCs are manifested).
NEUT% r=0.90 or more
LYMPH% r=0.90 or more
MONO% r=0.75 or more
EO% r=0.80 or more
BASO% r=0.50 or more
IG%*
1
r=0.80 or more
NRBC% r=0.80 or more
*1: Analyze 100 fresh samples that have immature granulocytes for XE-5000 and
reference method (FCM) and manual countig method using NCCLSH-20A.
Average of deviation from the standard instrument
NEUT% Within ±3.0 NEUT%
LYMPH% Within ±3.0 LYMPH%
MONO% Within ±2.0 MONO%
EO% Within ±1.0 EO%
BASO% Within ±1.0 BASO%
IG% Within ±1.5 IG%
Accuracy (reticulocyte
parameters)
Manual mode,
sampler mode
RET# Within ±20% or within ±0.015 × 10
6
/µL
RET% Within ±20% or ±0.3 RET%
IRF Within ±30% or ±10 IRF%
LFR Within ±30% or ±10 LFR%
MFR Within ±30% or ±10 MFR%
HFR Within ±30% or ±5 HFR%
Accuracy (reticulocyte
parameters)
Capillary mode
RET# Within ±30% or within ±0.025 × 10
6
/µL
RET% Within ±30% or ±0.5 RET%
Accuracy (reticulocyte
parameter correlation)
RET# r=0.90 or more
RET% r=0.90 or more
Accuracy (cell counts)
Body fluid analysis
mode
Accuracy is expressed as the regression line’s slopes and coefficient of correlation
to the Fuchs Rosenthal method as reference method, using 50 or more samples.
WBC-BF r=0.9 or more, and within slope=1 ±0.3
RBC-BF r=0.8 or more, and within slope=1 ±0.3
Accuracy (blood cell
differentiation)
Body fluid analysis
mode
Accuracy is expressed as the regression line’s slopes and coefficient of correlation
to the manual count by using Cytospin as reference method, using 50 or more
samples.
MN% r=0.7 or more, and within slope=1 ±0.5
PMN% r=0.7 or more, and within slope=1 ±0.5
MN# r=0.9 or more, and within slope=1 ±0.5
PMN# r=0.9 or more, and within slope=1 ±0.5
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