2018, Number 1
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Rev Mex Patol Clin Med Lab 2018; 65 (1)
Competence and performance of clinical laboratories in measuring uric acid
Acosta-García EJ, Peñate E, Ruiz-Alfonzo OM, Rojas-Figueredo ED, Berrueta-Ávila A
Language: Spanish
References: 17
Page: 62-66
PDF size: 242.09 Kb.
ABSTRACT
Introduction: External quality assessment programs are indispensable for comparing performance in the determination of analytes between different clinical laboratories.
Objectives: To evaluate the competence and performance of clinical laboratories of the municipalities Valencia, Naguanagua and San Diego of Carabobo state, Venezuela, in determining uric acid.
Material and methods: The study was not experimental, descriptive and transversal in 19 laboratories. The evaluation was on two control sera, level I and II (CSI and CSII). The competence was assessed with the total error (% TE) and performance by metric sigma (MS).
Results: The greatest interlaboratory imprecision was observed in the determination of uric acid in the CSI (CV = 30.4%). Only three laboratories (15.8%) showed competence in the determination of uric acid in CSI and CSII. The best performance was observed in the determination of uric acid in the CSI, which was reached by a single laboratory that achieved a SM = 9.5 (excellent).
Conclusion: We observed a low percentage of clinical laboratories with competence in the determination of uric acid; among these, the best performance was obtained in the determination of that analyte in the SCI.
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