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Related Experiment Videos

Standardization by reference methods: a German viewpoint.

E S Schmidt1, F W Schmidt

  • 1Abteilung Gastroenterologie und Hepatologie, Zentrum Innere Medizin und Dermatologie, Medizinische Hochschule Hannover, FRG.

Clinica Chimica Acta; International Journal of Clinical Chemistry
|March 31, 1988
PubMed
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Standardized methods improve enzyme assay quality assessment in clinical labs, outperforming reference method values. European national methods show significant similarities for enzyme determination.

Area of Science:

  • Clinical enzymology
  • Laboratory medicine
  • Biochemical analysis

Background:

  • Optimized and standardized methods are crucial for accurate enzyme activity determination in clinical laboratories.
  • Current quality assessment strategies for enzyme assays face challenges, including the limitations of the 'New Concept of Reference Method Values'.
  • The reliance on standard materials alone may not suffice for robust quality control.

Purpose of the Study:

  • To describe the challenges in applying optimized and standardized methods for enzyme activity determination.
  • To evaluate the effectiveness of the 'New Concept of Reference Method Values' in quality assessment.
  • To demonstrate the advantages of standardized methods over standard materials and compare European national methods.

Main Methods:

Related Experiment Videos

  • Comparative analysis of optimized versus standardized methods for enzyme assays.
  • Evaluation of the 'New Concept of Reference Method Values' using quality assessment data.
  • Cross-validation of results from European national recommended methods for five key enzymes.

Main Results:

  • The 'New Concept of Reference Method Values' has proven inadequate for quality assessment of enzyme assays.
  • Standardized methods offer superior advantages for quality control compared to using only standard materials.
  • A high degree of similarity was observed among European national recommended methods for determining five specific enzymes.

Conclusions:

  • Standardized methods are essential for reliable enzyme activity measurement and quality assurance in clinical settings.
  • The limitations of current reference value concepts highlight the need for robust standardization protocols.
  • Harmonization of enzyme assay methods across European laboratories is evident, facilitating inter-laboratory comparisons.