Use of urinary gram stain for detection of urinary tract infection in childhood

Abstract

In this study, urinary culture, Gram stain, and tests within the urine analysis. In 100 children with symptoms of urinary tract infection," Leucocyte esterase, nitrate, Microscopy for bacteria and pyuria " were examined. We intended to establish the validity and benefits of the urinary Gram stain compared with a combination of Gram stain and overall urine analysis " positiveness of nitrate, leukocyte esterase, microscopy for bacteria or microscopy for white blood cells". Of 100 children (age: 2 days-15 years), 70% had a positive urinary culture : 43% boys and 57% girls. The most common isolated agent was E.coli (Escherichia coli). The sensitivity and specificity of the urinary Gram stain were 80% and 83%, and for both pyuria plus Gram stain 42% and 90%, and that of the overall urine analysis was 3.5% respectively. Our findings showed there is no route of urine screen that can replace a urine culture in symptomatic patients.