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Rapidlab 1200 Operator's Guide: System Specifications
Table E-20
Level Mode
5
6
7
8
9
1
2
3
4
5
6
7
8
9
*
WRSD = within-run standard deviation
Recovery and Precision of Hemoglobin Fractions in Human
Whole Blood
For testing capillary, tHb, and syringe modes, blood is collected in heparinized
vacuum tubes. It is tonometered at 37°C and/or adjusted chemically. Three target
levels of tHb were prepared by separating the red cells from the plasma and
recombining appropriately. For each run, separated by mode, 3 replicates of each
level were run on a minimum of 3 Rapidlab 1245 systems. The mean bias was
determined by taking the difference between the Rapidlab 1245 system mean and
the reference methods mean. The mean bias and the pooled within run standard
deviation were determined for each blood preparation and sampling mode.
Rapidlab 1245 Recovery and Precision Testing—pO
n
WRSD
Micro-
12
1.86
capillary
Micro-
12
2.21
capillary
Micro-
12
3.70
capillary
Micro-
12
9.31
capillary
Micro-
12
10.50
capillary
Micro-
24
0.33
syringe
Micro-
24
0.59
syringe
Micro-
24
0.79
syringe
Micro-
24
0.74
syringe
Micro-
24
1.06
syringe
Micro-
24
13.25
syringe
Micro-
24
3.57
syringe
Micro-
24
6.96
syringe
Micro-
24
8.38
syringe
*
Observed
Expected
150.3
149.8
186.7
199.5
239.9
249.7
332.2
377.6
556.7
649.3
27.5
28.3
51.7
50.1
91.3
85.9
106.0
107.4
150.6
150.3
190.7
198.2
247.5
250.5
341.4
375.1
583.6
651.3
E-25
2
Recovery
WRCV
100.3
1.2
93.6
1.2
96.1
1.5
88.0
2.8
85.7
1.9
97.0
1.2
103.3
1.1
106.3
0.9
98.7
0.7
100.2
0.7
96.3
6.9
98.8
1.4
91.0
2.0
89.6
1.4
02087462 Rev.V
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