Recovery And Precision Of Blood Gases In Human Whole Blood - Siemens Rapidlab 1200 Operator's Manual

E-12
The following tables summarize the results of the Rapidlab 1240 system precision for
manual QC and AutomaticQC.
Table E-9
Analyte
pH
pH
pH
pCO
2
pCO
2
pCO
2
pO
2
pO
2
pO
2
* WRSD = within-run standard deviation
† Total SD = total standard deviation
Table E-10
Analyte
pH
pH
pH
pCO
2
pCO
2
pCO
2
pO
2
pO
2
pO
2
* WRSD = within-run standard deviation
† Total SD = total standard deviation

Recovery and Precision of Blood Gases in Human Whole Blood

To prepare samples for analysis, blood was collected in heparinized vacuum tubes and
tonometered at 37ºC for each of 6 levels for pH and 9 levels for pCO
were performed using these samples on a minimum of 3 Rapidlab 1240 systems.
02087462 Rev.V
Rapidlab 1200 Operator's Guide: System Specifications
Rapidlab 1240 Manual QC Precision Results
Level n
1 162
2 161
3 160
1 162
2 161
3 160
1 162
2 161
3 160
Rapidlab 1240 AutomaticQC Precision Results
Level n
1 161
2 163
3 158
1 162
2 163
3 159
1 163
2 163
3 160
*
Mean WRSD
7.121 0.001
7.331 0.001
7.534 0.001
70.8 0.49
40.3 0.30
23.0 0.21
147.4 0.71
97.6 0.73
23.8 0.94
*
Mean WRSD
7.156 0.001
7.358 0.001
7.559 0.001
66.5 1.02
38.6 0.37
21.7 0.45
153.5 0.74
104.0 0.93
68.2 1.19
†
Total SD
0.001
0.002
0.002
0.97
0.48
0.31
1.72
1.21
1.10
†
Total SD
0.001
0.001
0.002
1.20
0.58
0.52
0.92
0.95
1.32
/ pO . Multiple runs
2 2