Evaluation of the Vitatron PA800 Analyser
Author Information
Author(s): Janet M. Smith, I. Fry, A. W. Walker
Primary Institution: Department of Clinical Biochemistry, St. Luke's Hospital, Guildford, Surrey, UK
Hypothesis
The Vitatron PA800 analyser can efficiently measure various serum constituents with accuracy and precision.
Conclusion
The Vitatron PA800 is a reliable instrument that produces accurate results on small volumes of serum with minimal reagent waste.
Supporting Evidence
- The PA800 can process up to 180 samples per hour.
- The instrument showed high correlation coefficients above 0.99 for most methods.
- Temperature control was found to be stable during assays.
- Precision figures for the phenytoin assay were better than those generally accepted for immunoassay techniques.
- Results from the endpoint cholesterol method improved after adjusting the pre-programmed factor.
Takeaway
The Vitatron PA800 is a machine that helps doctors quickly and accurately check blood for important substances, using less material than older machines.
Methodology
The evaluation involved precision, accuracy, linearity, and carryover studies over a 4-month period using various serum samples.
Potential Biases
Potential bias due to reliance on pre-programmed factors and the need for manual adjustments.
Limitations
The study faced issues with pre-programmed factors affecting accuracy and minor faults in the instrument's design.
Want to read the original?
Access the complete publication on the publisher's website