The chemical physical analysis in the urine summary as a triage in clinical management




Urine; Qualitative analysis; Sediments.


The summary urine test consists of physical-chemical analysis and sedimentoscopy. When the physical-chemical phase is normal, it is discussed not carrying out the sedimentoscopy step. This study aimed to evaluate the importance of normal physicochemical results of urine as a screening test for sedimentoscopy. The results of 3661 routine urine summary tests (medium jet) performed at the Clementino Fraga Laboratory, Fortaleza-Ceará, in January 2018 were analyzed. The collected data were recorded, tabulated and analyzed in the SPSS software version 17.0. It was observed that 77.92% of the urine tests showed no physical-chemical alterations. Of the 2658 urines with normal physicochemical analyses, 87.06% had normal sedimentoscopies within a confidence interval of 85.78% - 88.34%. Analyzing the negative predictive value (NPV) of urine with normal physicochemical and correlating it with the alterations found in the sedimentoscopies, we verified that this method has 99.8% of accuracy for all the elements found. The absence of leukocyte esterase and red blood cells in the physical-chemical analysis has an accuracy for sedimentoscopy of 97.5% and 98.2%, respectively. The present study suggests the use of normal physicochemical analysis as an exclusion factor for sedimentoscopy.


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How to Cite

SOUSA, P. C. P. de .; PETROLA, A. N. S. .; FÉRRER, C. M. .; VALE, L. A. .; XAVIER, L. G. M. .; KUBRUSLY, M. . The chemical physical analysis in the urine summary as a triage in clinical management. Research, Society and Development, [S. l.], v. 12, n. 2, p. e8012239922, 2023. DOI: 10.33448/rsd-v12i2.39922. Disponível em: Acesso em: 3 oct. 2023.



Health Sciences