User's Manual

Table Of Contents
i15 Blood Gas and Chemistry Analysis System User Manual Parameters
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each level of materials were analyzed in parallel on the i15 Blood Gas and Chemistry Analysis
System and the Rapidpoint 400 system. Reference materials used were RNA Medical
®
CVC 9005
Hematocrit Calibration Verification Controls, and they were traceable to NIST standards. In the table
below, Sy.x refers to the standard error of estimate.
Parameter N Slope Intercept
Correlation
Coefficient
Sy.x Range
Hct 15 0.99 0.56 0.99988 0.34811 15.0 – 62.0
In the comparison study, samples were analyzed in parallel on the i15 Blood Gas and Chemistry
Analysis System and the Rapidpoint 400 system. Two replicates of each sample were analyzed
on each system.
Parameter N Slope Intercept
Correlation
Coefficient
Sy.x Range
Hct
215
0.9729 1.0199 0.9932 0.7518 23 - 53
12.8.4 Interfering Substances
The substances interfering with the hematocrit measurement are listed below:
A significant increase in white blood cell count may increase the hematocrit results.
Total protein level will increase the hematocrit results.
Abnormally high lipids may increase the hematocrit results.
Factors interfering with sodium results will also interfering with hematocrit results.
NOTE:
It is possible that there are other substances interfering with the hematocrit
measurement.