Thermostatic Regulation of Blood Samples in Blood Gas Analysers
Author Information
Author(s): B. Dingeon, H. Bernon, A. Roullet, C. Collombel
Primary Institution: Laboratoire de Biochimie, Centre Hospitalier, Chambery, France
Hypothesis
The study aims to examine the temperature of blood samples within the sample chamber of blood gas analysers.
Conclusion
Only one manufacturer provides instruments that conform to the technical specifications, while others show good repeatability but fail in accuracy.
Supporting Evidence
- Temperature variations for pH, pCO2, and pO2 were noted to be significant based on the type of solution.
- One manufacturer, Corning, consistently provided high-quality sample thermoregulation across their instruments.
- Good repeatability of temperature was observed for each instrument tested.
Takeaway
The study tested different blood gas analysers to see how well they keep blood samples at the right temperature, and found that some do a better job than others.
Methodology
The study involved testing 11 different models of blood gas analysers from five manufacturers, using a thermocouple to measure sample temperatures.
Limitations
The study does not address the long-term reliability of the instruments or the effects of different types of blood samples.
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