Diseño, implementación y evaluación de seis indicadores de calidad en las fases preanalítica, analítica y postanalítica en el laboratorio Santa Ana Lab. Cuenca, agosto-diciembre 2025

Abstract

Background: In the clinical laboratory, quality indicators enable the identification of deficiencies, improve the reliability of test results, and strengthen patient safety. In Ecuador, despite existing regulations, the systematic application of these indicators remains limited. Objective: To design, implement, and evaluate six quality indicators in the pre-analytical, analytical, and post-analytical phases at Santa Ana Lab, Cuenca, during the period August–November 2025. Methods: A quantitative, descriptive, and prospective study was conducted through documentary review of physical and digital records. Results: In the pre-analytical phase, the satisfaction survey showed a 70% “excellent” rating, while errors in patient identification data were only 0.58%. In the analytical phase, internal quality control demonstrated 100% accuracy in complete blood count testing and 97.35% in clinical chemistry; external quality control achieved 96.29% accuracy. In the post-analytical phase, 95.64% of results were delivered on time, and 100% of critical values were reported promptly. Conclusions: The implementation of these indicators strengthened internal management and process traceability in accordance with ISO 15189:2022, positively impacting patient safety.