Annual Report on External Quality Assessment in Immunoserology in Korea (2007).
- Author:
Young Joo CHA
1
;
So Yong KWON
;
Think You KIM
;
Jae Ryong KIM
;
Hyon Suk KIM
;
Myong Hee PARK
;
Seong Hoon PARK
;
Ae Ja PARK
;
Han Chul SON
;
Joo Seok YANG
;
Kye Sook LEE
;
Seok Lae CHAE
Author Information
1. Immunoserology Subcommittee, The Korean Association of Quality Assurance for Clinical Laboratory, Seoul, Korea. chayoung@cau.ac.kr
- Publication Type:Note
- Keywords:
Immunoserology;
External quality assessment;
HBsAg;
Anti-HBs;
Anti-HCV;
Anti-HIV;
CRP;
RF;
ASO;
Widal;
STS;
ICA;
CIA;
EIA;
MEIA;
Nephelometry;
TIA
- MeSH:
Bacterial Proteins;
C-Reactive Protein;
Hepatitis B Surface Antigens;
Immunochromatography;
Indicators and Reagents;
Internet;
Korea;
Nephelometry and Turbidimetry;
Rheumatoid Factor;
Streptolysins
- From:Journal of Laboratory Medicine and Quality Assurance
2008;30(1):49-74
- CountryRepublic of Korea
- Language:Korean
-
Abstract:
The followings are the results for external quality assessment (EQA) in immunoserology for 2007: 1. Evaluation of EQA was done in 2 trials in May and December, about 99% of laboratories participating average 7.8 items. The results were collected via internet for the first time and 96~98% of laboratories have sent their results via internet. 2. All the specimens for Immunoserology in EQA were delivered refrigerated, being received within 48 hours after sending. 3. Commercial controls, MASR Immunology Control from Medical Analysis Systems (Camarillo, CA, USA) were used to assure the quality of quantitative results of C-reactive protein (CRP), rheumatoid factor (RF) and anti- streptolysin O (ASO) tests, and the RF results of MASR Immunology Control were variable depending on the reagents used. 4. The laboratories using immunochromatography assay (ICA) were increased, however, many laboratories using ICA reported falsely negative for the positive specimens. The sensitivity of ICA test kits as well as various factors influencing the ICA results should be evaluated. 5. The HBsAg results of the ACCURUN 1R Multi-Marker Positive Control (Boston Biomedica Inc. USA) were falsely reported as negative in some laboratories using arbitrarily determined cutoff. 6. Standardization of methods including calibrators for quantitative results should be required for the harmonization of results.
