¹è°æ This study was aimed at evaluating the performance of chromogenic agars for the isolation and presumptive identification of urinary tract pathogens.
¹æ¹ý We evaluated the performance of a commercially available pre-poured chromogenic agar, chromogenic urinary tract infection(UTI) medium(Chromogenic UTI, Oxoid, UK), and compared it with the performance of routine urine culture media, such as sheep blood agar and MacConkey agar, and the VIT´Ù 2 identification system.
°á°ú A total of 990 urine samples were assessed in this study. The chromogenic medium showed identical positive results in 153 out of 214 samples. In the remaining 61 cases, the chromogenic medium detected mixtures, while the reference media did not. Escherichia coli were identified in 65 cases; in these cases, further identification procedures were not needed.
°á·Ð The chromogenic medium showed results comparable with those of the reference media in isolation and colony counts of urinary pathogens. The agar also afforded the advantage of rapid identification of E. coli and easy detection of mixtures, which could help identify contamination. |