Abbott CELL-DYN 3200, Руководство оператора системы

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CELL-DYN ® 3200 System Operator’s Manual
4-9
9140181H—October 2001
Section 4 Performance Characteristics and Specifications
Performance Specifications
Background Counts
Background counts for the following parameters are acceptable up to the limits
listed:
WOC <0.10 K/µL
NOC <0.10 K/µL
RBC <0.02 M/µL
HGB <0.10 g/dL
PLT <5.0 K/µL
RETIC <100 counts/count cycle
Carryover
Carryover is the degree of influence the previous sample has on the next sample
and is expressed as a percent. Fresh whole blood samples that are used to verify
carryover specifications should have results that fall within each laboratory’s
reference interval (normal range). Each sample is run in triplicate followed by three
background cycles.
The percent carryover for CBC parameters, as shown in Table 4.6, is calculated
using the following formula:
Absolute Carryover = Background
1
- Background
3
Table 4.6 Carryover for WOC, NOC, RBC, HGB, and PLT
Parameter Specimen Range Carryover
WOC
4.1–11.0 x K/
µL
< 1% or 0.1 K/
µL
NOC
4.1–11.0 x K/
µL
< 1% or 0.1 K/
µL
RBC
4.0–6.0 x M/
µL
< 1% or 0.03 M/
µL
HGB
12.1–17.0 g/
dL
< 1% or 0.1 g/
dL
PLT
150.0–400.0 x K/
µL
< 1% or 6 K/
µL
% Carryover =
Background
1
-
Background
3
Background
3
Sample
3
-
X 100