Beckman Coulter COULTER LH 750 System, Reference, Page: 63 / 120

PN 4277248DD
4-9
SPECIFICATIONS/CHARACTERISTICS
PERFORMANCE CHARACTERISTICS
4
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NRBC Paired Sample Imprecision
Table 4.19 shows the NRBC results for whole blood specimens with and without NRBC
collected in a salt of EDTA. Each specimen was analyzed in duplicate using Automatic Mode.
The individual differences for each specimen were calculated (run1 - run 2) and the Mean
and Standard Deviation of the Differences were determined.
MCV Accuracy Characteristics
Table 4.20 shows MCV accuracy at temperature extremes.
Table 4.17 Differential Suspect Flagging at Room Temperature
Sample # 1 hour 4 hour 8 hour 16 hour 24 hour
1 Imm Ne 1 Imm Ne 1 Imm Ne 1 Imm Ne 1 Mo Blast, Imm Ne 1,
Imm Ne 2
2 * * * * Imm Ne 2
3 * * * * *
4 * * * * *
5 * * * * *
*Indicates that there were no flags present.
Table 4.18 Differential Suspect Flagging at Cold Temperature
Sample # 4 hour 8 hour 16 hour 24 hour 36 hour 48 hour
1 Imm Ne 1 * Imm Ne 1 Imm Ne 1 Imm Ne 1 Imm Ne 1
2 * * * * * *
3 * * * PLT Clumps * *
4 * * * * * *
5 * * * * * *
*Indicates that there were no flags present.
Table 4.19 NRBC Imprecision Characteristics,Paired Sample Analysis - Replicate 1 vs. Replicate 2
Parameter Units N
Population
Minimum Population
Maximum Mean
Difference
SD of
Difference
NRBC % 488 0.00 184.44 -0.14 1.69
Table 4.20 MCV Performance Characteristics
Temperature
With LH Series
Reagents With ISOTON 4
LYSE S 4
@ 60 degrees F -1.9% -0.7%
@ 90 degress F -0.1% 2.4%