Performance characteristics, Appendix d – ITC IRMA TruPoint Blood Analysis System User Manual
Page 153
D.1
Appendix D
Performance
Characteristics
ACCURACY
Accuracy was determined by analyzing human whole blood samples on both
the IRMA TruPoint blood analysis system and a reference method. Least
squares analysis was used to determine the line-of-best-fit.
pH
Number of samples:
94
Range evaluated:
6.860 - 7.710
Slope:
0.936
Intercept:
0.456
Correlation Coefficient (r):
0.997
Sy.x:
0.017
pCO
2
Number of samples:
94
Range evaluated (mmHg):
4.4 - 149.4
Slope:
0.972
Intercept:
0.308
Correlation Coefficient (r):
0.999
Sy.x:
1.88
pO
2
Number of samples:
94
Range evaluated (mmHg):
17.9 - 356.5
Slope:
0.996
Intercept:
1.494
Correlation Coefficient (r):
0.999
Sy.x:
2.91
Sodium (Na+)
Number of samples:
137
Range evaluated (mM):
86.0 - 168.0
Slope:
1.110
Intercept:
-22.71
Correlation Coefficient (r):
0.998
Sy.x:
2.14