Affiliations: *National Institute of Health, Department of Medical Science,
Ministry of Public Health, Nonthaburi
Source: Journal of Health Science 2001; 10: 695-702
Language: Thai with English abstract
The proficiency testing program in hemoglobin separation and determination was organized by the National Institute of Health. Two quality control materials were sent to 9 participating laboratories thoughout the country once every 3 months during January 1999- December 2000. The analysts were required to examine the samples and laboratory results were subsequently submitted to National Institute of Health for statistical analysis. It was found that clinically significant errors were observed in 1-2 participating laboratories in round 1,2,3,4 and 6. Allmost all of the errors were due to higher level of Hb A2 than acceptable limit. After the 6 rounds, improved performances of all participating laboratories were clearly observed. All of them reported results within an acceptable rang. It is thus illustrates the benefit of the proficiency testing program and its positive effect on the participating laboratories in working towards the improvement of analytical precision and accuracy.