Related Experiment Videos
[Quality assurance or quality control. Lessons from an intercomparison circuit].
F Pierre1, F Baruthio, J Arnaud
1INRS, Centre de recherche, Vandoeuvre-lès-Nancy, France.
Annales De Biologie Clinique
|January 1, 1992
Summary
French laboratories showed a decline in serum copper and zinc analysis performance over three years. Vigilance and comprehensive quality assurance programs are crucial for consistent laboratory results.
Area of Science:
- Clinical Chemistry
- Analytical Chemistry
- Laboratory Medicine
Background:
- Interlaboratory control programs are essential for assessing laboratory performance.
- Serum copper and zinc analyses are important diagnostic markers.
- Maintaining consistent laboratory quality requires ongoing evaluation.
Purpose of the Study:
- To evaluate the three-year results of a French interlaboratory control program for serum copper and zinc.
- To analyze performance trends and identify factors affecting laboratory accuracy.
- To differentiate between quality control and total quality assurance.
Main Methods:
- Analysis of three years of data from a French interlaboratory quality control scheme.
- Statistical evaluation of laboratory performance in serum copper and zinc measurements.
- Interpretation of results based on quality control and total quality assurance principles.
Main Results:
- A significant year-to-year variation in the performance range of participating laboratories was observed.
- Laboratories initially performing well showed a notable decrease in individual performance in the second year.
- This decline may be linked to reduced vigilance following initial success.
Conclusions:
- Good laboratory practices alone are insufficient for sustained quality.
- A robust quality program, extending beyond analytical control, is necessary.
- Continuous monitoring and a proactive approach to quality assurance are vital for reliable diagnostic testing.