• Sitemap
  • Contact us

pISSN 2384-2458 eISSN 2288-7261
Article View

Annual Report

J Lab Med Qual Assur 2016; 38(3): 120-128

Published online September 30, 2016

https://doi.org/10.15263/jlmqa.2016.38.3.120

Copyright © Korean Association of External Quality Assessment Service.

Annual Report on the External Quality Assessment Scheme for Urinalysis and Faecal Occult Blood Testing in Korea (2015)

Chang-Ho Jeon and A-Jin Lee, as the Urinalysis and Routine Microscopy Subcommittee, Korean Association of External Quality Assessment Service

Department of Laboratory Medicine, Daegu Catholic University School of Medicine, Daegu, Korea

Correspondence to:Chang-Ho Jeon
Department of Laboratory Medicine, Daegu Catholic University Medical Center, 33 Duryugongwon-ro 17-gil, Namgu, Daegu 42472, Korea
Tel: +82-53-650-4144 Fax: +82-53-653-8672 E-mail: chjeon@cu.ac.kr

This is an Open Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/by-nc/3.0) which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

In Korea, external quality assessment trials for urinalysis and faecal occult blood (FOB) were performed for 1,250 participants. Urine chemistry and FOB tests were evaluated three times, whereas urine sediment by photography was evaluated twice. Urine chemistry tests consisted those for pH, protein, glucose, ketone, bilirubin, blood, urobilinogen, nitrite, leukocyte, and specific gravity. The results of the urine chemistry and specific gravity tests showed accuracy rates >95%. In the FOB quality test, all reagents showed false-positive results. These reagents showed positive results in stool specimens containing >11 ng/mL haemoglobin. In the FOB quantitative test, the results were significantly different, based on the instrument used for the measurements. The average accuracy rate of urine sediments was 90.8%, whereas those for renal epithelial cells and cholesterol crystals were 83%.

Keywords: Quality assessment, Urinalysis, Occult blood

References

  1. Jeon CH, Lee AJ, Kim KD; The Urinalysis & Routine Microscopy Subcommittee, Korean Association of External Quality Assessment Service. Annual report on external quality assessment scheme for urinalysis and faecal occult blood testing in Korea (2014). J Lab Med Qual Assur 2015;37:179-89.
    CrossRef
  2. Guittet L, Bouvier V, Mariotte N, Vallee JP, Levillain R, Tichet J, et al. Performance of immunochemical faecal occult blood test in colorectal cancer screening in average-risk population according to positivity threshold and number of samples. Int J Cancer 2009;125:1127-33.
    Pubmed CrossRef
  3. Levi Z, Rozen P, Hazazi R, Vilkin A, Waked A, Maoz E, et al. A quantitative immunochemical fecal occult blood test for colorectal neoplasia. Ann Intern Med 2007;146:244- 55.
    Pubmed CrossRef
  4. Park DI, Ryu S, Kim YH, Lee SH, Lee CK, Eun CS, et al. Comparison of guaiac-based and quantitative immunochemical fecal occult blood testing in a population at average risk undergoing colorectal cancer screening. Am J Gastroenterol 2010;105:2017-25.
    Pubmed CrossRef
  5. Brenner H, Tao S. Superior diagnostic performance of faecal immunochemical tests for haemoglobin in a headto-head comparison with guaiac based faecal occult blood test among 2235 participants of screening colonoscopy. Eur J Cancer 2013;49:3049-54.
    Pubmed CrossRef
  6. Kim JH, Hwang SY, Kim YJ. Evaluation of Hemo Techt NS-plus C15 Automatic Analyzer for fecal occult blood test. J Lab Med Qual Assur 2010;32:237-41.
  7. McPherson RA, Pincus MR. Henry’s clinical diagnosis and management by laboratory methods. 23rd ed. St. Louis (MO): Elsevier, 2017:461-71.

Supplementary File


Share this article on :

Stats or metrics