Evaluation of the Mitsubishi GL-101 Glucose Analyser
Author Information
Author(s): Susan Oldfield, A. E. Hurrell, J. D. McVittie, D. Quantrill
Primary Institution: Good Hope General Hospital, John Radcliffe Hospital
Hypothesis
The Mitsubishi GL-101 glucose analyser's performance will be evaluated against existing methods.
Conclusion
The Mitsubishi GL-101 is a compact and efficient glucose analyser that generally performs well, although there are concerns about its accuracy at low glucose concentrations.
Supporting Evidence
- The GL-101 can analyze up to 120 samples per hour.
- The precision of the GL-101 is adequate for routine use and superior to the Beckman analyser.
- The cost per test on the GL-101 is lower than on the Beckman glucose analyser.
- The GL-101 showed a linear response for glucose concentrations up to 50mmol/l.
- Interference from ascorbic acid and other substances was minimal.
- Carry-over from previous samples was measured and found to be acceptable.
- Problems with air bubbles and blockages were noted during the evaluation.
- The analyser is simple to use but requires calibration before use after being turned off.
Takeaway
The Mitsubishi GL-101 is a machine that tests blood sugar levels quickly and automatically, but sometimes it doesn't give accurate results for very low sugar levels.
Methodology
The study involved comparing the Mitsubishi GL-101 with the Beckman glucose analyser using serum pools of varying glucose concentrations over 40 trials.
Potential Biases
There is a risk of bias due to the prototype's inconsistent performance and potential interference from proteins in samples.
Limitations
The study faced issues with the prototype's performance, including spurious low results and maintenance difficulties.
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