Comparación de los resultados del examen general de orina obtenidos por el método automatizado versus el método convencional

Abstract

The elemental and microscopic analysis of urine plays a very important role in the diagnosis and follow-up of nephrological and urological pathologies. The manual method is still the most common methodology used in most laboratories and consists of 3 phases: physical, chemical and microscopic. The use of automated urine analyzers optimizes the analysis time of these three phases making them an attractive alternative in a high volume laboratory environment. The objective of the present investigation was to compare the results of the general urine examination obtained by the automated method versus the conventional method using the FUS-2000 DIRUI equipment of the Laboratory of Biochemical and Bacteriological Analysis of the Technical University of Ambato. The research was considered correlational in scope, with a non-experimental and transectional design, with a quantitative approach. A total of 108 urine samples were collected and analyzed by manual and automated methods. There was 100% agreement for nitrites, urobilinogen, bilirubin, glucose, proteins, blood and ketone bodies; 99.1% for leukocytes and micro-albuminuria; in the formed elements, 84.3% was obtained for epithelial cells, 82.8% for red blood cells, 63% for crystals, 98.1% for other observed elements and 100% for bacteria, leukocytes, mucoid filament and round cells. It is concluded that automated analysis of the general urine examination is sufficiently accurate and improves the workflow in a routine laboratory.