Siemens Rapidlab 1200, Operator'S Manual, Page: 412 / 448

E-52 Rapidlab 1200 Operator’s Guide: System Specifications
02087462 Rev.V
Recovery and Precision of Blood Gases, Electrolytes, and
Metabolites in Human Whole Blood
To prepare samples for analysis, blood was collected in heparinized vacuum tubes and
tonometered at 37°C to each of 6 levels to prepare samples for pH, Na
+
, K
+
, Cl
-
, and Ca
++
,
5 levels to prepare samples for glucose and lactate analysis, and 9 levels to prepare
samples for
p CO
2
and p O
2
analysis. Multiple runs were performed using these samples on
a minimum of 3 Rapidlab 1265 systems.
These tables summarize the results of the Rapidlab 1265 system human whole blood
recovery precision testing.
pO
2
2 218 103.4 1.22 1.34
pO
2
3 218 67.2 1.66 1.95
tHb 1 97 17.1 0.12 0.13
tHb 2 94 13.8 0.20 0.20
tHb 3 95 7.6 0.07 0.08
F O
2
Hb 1 97 77.3 0.84 0.94
F O
2
Hb 2 94 91.3 0.77 1.02
F O
2
Hb 3 95 60.5 0.88 1.07
F COHb 1 97 6.1 0.78 1.30
F COHb 2 94 5.9 0.70 1.44
F COHb 3 95 18.7 0.92 1.46
F MetHb 1 97 17.1 0.32 0.35
F MetHb 2 94 2.8 0.88 0.89
F MetHb 3 95 5.7 0.54 0.55
F HHb 1 97 0.2 0.31 0.41
F HHb 2 94 0.4 0.40 0.64
F HHb 3 9 15.1 0.52 0.84
* WRSD = within-run standard deviation
† Total SD = total standard deviation
Table E-54 Rapidlab 1265 Recovery and Precision Testing—pH
Level Mode N WRSD
*
Observed Expected Recovery WRCV
1 Capillary 21 0.001 7.061 7.048 100.19 0.02
2 Capillary 18 0.001 7.237 7.231 100.09 0.01
3 Capillary 21 0.001 7.326 7.311 100.21 0.02
4 Capillary 18 0.001 7.429 7.423 100.09 0.02
Table E-53 Rapidlab 1265 AutomaticQC Precision Results
Parameter Level n Mean WRSD
*
Total SD
†