An evaluation of the EPOS selective chemistry analyser
1987
Evaluation of the EPOS Selective Chemistry Analyser
publication
Evidence: moderate
Author Information
Author(s): G.J. Hughes, D. J. Wright
Conclusion
The EPOS selective chemistry analyser performed well in terms of precision and compliance with specifications, although the calcium method showed poor correlation with comparative methods.
Supporting Evidence
- The dispensing system, photometer unit, and temperature control system were excellent.
- The urea and GGT methods correlated well with comparative methods.
- The calcium method showed a very poor correlation against a comparative method.
Takeaway
The EPOS analyser is good at measuring certain chemicals in blood, but it struggles with calcium measurements.
Methodology
The analyser was evaluated using three chemistries: calcium, urea, and GGT, assessing precision, correlation with comparative methods, and overall design.
Potential Biases
A small positive bias was noted for urea and GGT methods.
Limitations
The calcium method had poor correlation and potential calibration issues.
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