External quality control results for hormones, tumor markers and CRP testing.
Southeast Asian J Trop Med Public Health
;
1999 ; 30 Suppl 3(): 105-9
Article
in English
| IMSEAR
| ID: sea-33638
ABSTRACT
Most hormones, tumor markers, C-reactive protein, and rheumatoid factor (RF) are measured immunologically. Immunological methods based on the antigen-antibody reaction have certain specific problems, including their principle of determination, character of antibodies used, reaction conditions, and others. Free thyroxine (FT4) and thyroid stimulating hormone (TSH), as well as alpha-fetoprotein (AFP), carcinoembryonic antigen (CEA), prostate antigen, carcinoantigen 19-9 (CA 19-9), and CA 125 are very commonly measured in the routine medical laboratory. Authentic materials can be obtained for hormones and CRP, and efforts to improve quality control and standardization have been made for years. Results of surveillance for FT4, TSH, and AFP were not poor, but inter-laboratory differences for CEA, CA 19-9, and RF were not insignificant.
Full text:
Available
Index:
IMSEAR (South-East Asia)
Main subject:
Quality Assurance, Health Care
/
Reference Standards
/
Rheumatoid Factor
/
Immunologic Tests
/
Humans
/
C-Reactive Protein
/
Biomarkers, Tumor
/
Reproducibility of Results
/
Hormones
/
Japan
Type of study:
Diagnostic study
Country/Region as subject:
Asia
Language:
English
Journal:
Southeast Asian J Trop Med Public Health
Year:
1999
Type:
Article
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