Annual Report of the Korean Association of External Quality Assessment Service on Urinalysis and Fecal Occult Blood Testing (2018)
10.15263/jlmqa.2019.41.2.75
- Author:
Chang Ho JEON
1
;
A Jin LEE
;
Sang Gyung KIM
;
Hun Seok SUH
;
Young Cheol BAE
Author Information
1. Department of Laboratory Medicine, School of Medicine, Catholic University of Daegu, Daegu, Korea. chjeon@cu.ac.kr
- Publication Type:Review
- Keywords:
Quality control;
Urinalysis;
Occult blood;
Accuracy
- MeSH:
Bilirubin;
Calcium Oxalate;
Chemistry;
Erythrocytes;
Glucose;
Hydrogen-Ion Concentration;
Indicators and Reagents;
Leukocytes;
Occult Blood;
Quality Control;
Specific Gravity;
Urinalysis;
Urobilinogen
- From:Journal of Laboratory Medicine and Quality Assurance
2019;41(2):75-81
- CountryRepublic of Korea
- Language:Korean
-
Abstract:
In 2018, external quality assessment trials for urinalysis and fecal occult blood (FOB) were performed using 1,590 participants. Urine chemistry tests were performed thrice while urine sediment and FOB tests twice. Urine chemistry tests comprised of pH, protein, glucose, ketone body, bilirubin, blood, urobilinogen, nitrite, leukocyte, and specific gravity analyses. The results of urine chemistry and specific gravity tests showed accuracy rates >95%, except for the pH test. The accuracy rate of urine sediments was low, especially for atypical calcium oxalate crystal and red blood cell cast. In the FOB quality test, reagents showed accuracy rates >90%, except for SD and GC Genedia FOB reagents. In the FOB quantitative test, Alfresa NS-Plus C instrument showed falsely high values in the FOB negative specimens.
