J Lab Med Qual Assur.  2015 Dec;37(4):179-189. 10.15263/jlmqa.2015.37.4.179.

Annual Report on External Quality Assessment Scheme for Urinalysis and Faecal Occult Blood Testing in Korea (2014)

• Jeon CH
• Lee AJ
• Kim KD
• The Urinalysis & Routine Microscopy Subcommittee, Korean Association of External Quality Assessment Service

• KMID: 2200276
• DOI: http://doi.org/10.15263/jlmqa.2015.37.4.179

Abstract

In 2014, external quality assessment trials for urinalysis and faecal occult blood (FOB) were performed of 1,270 participants. Urine chemistry and FOB tests were evaluated three times, while urine sediment examination by photography was evaluated one time. Urine chemistry tests consisted of pH, protein, glucose, ketone, bilirubin, blood, urobilinogen, nitrite, leukocyte, and specific gravity (SG). The urine chemistry test results showed accuracy rates >95%, while those of the SG test by using a refractometer had accuracy rates <95%. In the FOB quality test, the Bio Focus reagent (BIO FOCUS Co., Korea) disclosed low positive rates (87%). The result of the FOB quantity test showed different values according to the instruments used, and the Kyowa instrument (Kyowa Chemical Industry Co., Japan) revealed the lowest values. In a urinary sediment examination, it is necessary to increase the frequency of the quality assessment trials due to low accuracy rates.

Keyword

Quality assessment; Urinalysis; Occult blood

MeSH Terms

Bilirubin
Chemical Industry
Chemistry
Glucose
Hydrogen-Ion Concentration
Korea*
Leukocytes
Occult Blood*
Photography
Specific Gravity
Urinalysis*
Urobilinogen
Bilirubin
Glucose
Urobilinogen