Examinando por Autor "Julcarima Briceño, Jhonny Josmell"

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    Evaluation of a colorimetric method for the detection of residual antimicrobial activity in urine cultures of the National Teaching Hospital Mother Child San Bartolomé, Lima 2023
    (Universidad Privada Norbert Wiener, 2023-11-09) Julcarima Briceño, Jhonny Josmell; Astete Medrano, Delia Jessica
    Experimental Study: The aim was to determine the antimicrobial activity in urine samples analyzed for uroculture using a colorimetric method. 1,014 urine samples were analyzed to detect residual antimicrobial activity with Bacillus subtilis ATCC 6633 spores as the indicator strain. Results from the colorimetric method showed a frequency of 11.4% in detecting residual antimicrobial activity, with a sensitivity of 97.5%, specificity of 100%, a negative predictive value of 99.6%, and a positive predictive value of 100%. The interpretation time was 66 (6.5%) samples in 2 hours and 50 (4.9%) samples in 4 hours. Conclusion: The colorimetric method showed excellent efficacy based on its sensitivity, specificity, interpretation time, and predictive values, aligning with the disk diffusion method.