Evaluation of the Corning 902 Sodium/Potassium Analyser
Author Information
Author(s): P. Bijster, H. L. Vader, C. L. J. Vink
Primary Institution: Klinisch Laboratorium, Sint Joseph Ziekenhuis, Eindhoven, The Netherlands
Hypothesis
The Corning 902 analyser provides accurate measurements of sodium and potassium in whole blood, plasma, and serum.
Conclusion
The Corning 902 analyser demonstrates comparable precision and linearity for sodium and potassium measurements when compared to other methods.
Supporting Evidence
- The Corning 902 analyser provides a linear response for sodium concentrations ranging from 100 to 195 mmol/l.
- The displayed potassium concentrations decrease with increasing sodium chloride concentration.
- Precision measurements showed no significant improvement with two-point calibration compared to one-point calibration.
Takeaway
The Corning 902 analyser is a device that helps measure sodium and potassium levels in blood samples, and it works well for this purpose.
Methodology
The study evaluated the precision and linearity of the Corning 902 analyser using various blood and serum samples over multiple measurements.
Potential Biases
Potential bias due to manual calibration and the influence of sample viscosity on measurements.
Limitations
The analyser does not perform automatic calibration after each measurement, which may affect precision.
Participant Demographics
Samples were taken from 50 patients.
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