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[Quality control in tumor marker values: methology, results and potential problems]
M Ben Ayed1, Y Ben Hadj Hmida, M Kassis
1Laboratoire d'Immunologie, CHU Habib Bourguiba de Sfax.
La Tunisie Medicale
|January 5, 2002
Summary
Quality control is vital for accurate tumor marker testing. This study details methods for ensuring reliable results of alpha-fetoprotein (AFP), carcinoembryonic antigen (CEA), and cancer antigen 15-3 (CA15-3) tests.
Area of Science:
- Clinical Chemistry
- Immunology
- Biochemistry
Context:
- Accurate quantification of circulating tumor markers is critical for cancer diagnosis and treatment.
- The immunology laboratory at Sfax University Hospital employs rigorous quality control measures.
- Tumor markers such as AFP, CEA, and CA15-3 are key indicators in oncology.
Purpose:
- To describe the internal and external quality control programs for tumor marker assays.
- To evaluate the reliability and consistency of tumor marker measurements.
- To identify factors contributing to result discrepancies in tumor marker testing.
Summary:
- This study outlines the quality control (QC) procedures implemented in the Sfax University Hospital immunology laboratory for the quantitative analysis of alpha-fetoprotein (AFP), carcinoembryonic antigen (CEA), and cancer antigen 15-3 (CA15-3).
- Both internal QC (IQC) and external QC (EQC) methods were applied to ensure the accuracy and precision of these vital circulating tumor markers.
- Comparative analysis of obtained results with literature data and discussion of factors influencing tumor marker measurement variability are presented.
Impact:
- Ensures reliable diagnostic and therapeutic decisions based on tumor marker levels.
- Contributes to the standardization of tumor marker testing in clinical laboratories.
- Highlights the importance of robust quality assurance in cancer biomarker analysis.