Volume 9, Issue 3 (Autumn 2005)                   2005, 9(3): 55-58 | Back to browse issues page

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Ayazi P, Rahmani A, Daneshi M, Barikbin M. Comparison of urine cultures and gram stained smears of urine in diagnosis of urinary tract infections. Journal of Inflammatory Diseases. 2005; 9 (3) :55-58
URL: http://journal.qums.ac.ir/article-1-708-en.html
1- , Email: Parviz_Ayazi@yahoo.com
Abstract:   (11057 Views)
Abstract Background: Different methods are used for diagnosis of urinary tract infections (UTI), however, they have different specificity, sensitivity and time consuming procedures. Objective: To evaluate and comparing the urine culture results with gram stained smears of urine in diagnosis of urinary tract infections. Methods: This research was conducted on 100 hospitalized patients with clinical signs and symptoms compatible with UTI. Urine cultures and gram staining were performed on urine samples of all patients. Findings: Urine culture was positive in 75 (75%) of patients. Gram stained smears on urine sediments were positive in 68 (68%) of patients. Sensitivity, specificity and positive predictive value of gram staining were 85%, 84% and 94% respectively. Conclusion: Gram stained smears of urine, as a diagnostic assay for UTI, is not as sensitive as urine cultures, but it takes only a few minutes to be performed, comparing with urine culture which takes several days.
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Type of Study: Research | Subject: Pediatrics

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