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Detection of Antibodies That Neutralize the Cellular Uptake of Enzyme Replacement Therapies with a Cell-based Assay

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[Determining and verifying reference intervals in clinical laboratories].

¹Inserm U1018-CETAF, Hopital Paul Brousse, Villejuif, Centre de Médecine Préventive Vandoeuvre-lès-Nancy. joseph.henry@cmp.u-nancy.fr

Annales De Biologie Clinique

|April 6, 2011

Summary

Updated guidelines clarify reference and decision limits for clinical laboratories. These recommendations aim to improve standardization and ensure published reference values are applicable to specific laboratory settings.

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Area of Science:

Clinical Chemistry
Laboratory Medicine
Biostatistics

Context:

The International Federation of Clinical Chemistry and Laboratory Medicine (IFCC) and the Clinical and Laboratory Standards Institute (CLSI) have released updated guidelines for establishing reference values.
Previous recommendations from the Expert Panel on the Theory of Reference Values require clarification and refinement.
Clinical laboratories face challenges in applying existing reference limits and adhering to regulatory standards.

Purpose:

To summarize the updated guidelines for determining reference limits and decision limits.
To provide a clearer, standardized terminology for reference values in laboratory medicine.
To offer a practical methodology for clinical laboratories to meet regulatory and standardization requirements.

Summary:

The revised guidelines offer precise definitions for reference limits and decision limits, addressing common terminology confusion.
They detail the procedural steps for determining reference limits, emphasizing essential conditions for accuracy.
A simplified methodology is proposed to help clinical laboratories verify the applicability of published reference limits to their specific context.
The document also outlines a process for clinical laboratories to assess if existing reference limits are relevant to their operations.

Impact:

Enhances the consistency and accuracy of reference value determination in clinical laboratories.
Facilitates compliance with evolving regulatory standards and laboratory best practices.
Aims to improve the reliability of diagnostic testing by ensuring appropriate reference limits are used.