[UTIscreen versus UROQUICK: two semiautomatic systems for bacteriuria detection].

BACKGROUND

The aim of the study is to find a rapid and reliable method for urine screen. With this purpose two semiautomatic systems have been evaluated: UTIscreen and UROQUICK.

MATERIAL AND METHODS

We have carried out a prospective study of a total 1,070 urine specimens from patients with suspected urinary infection. Each sample has been inoculated in the two semiautomatic systems and compared with the semiquantitative plate culture as the reference method.

RESULTS

Both semiautomatic systems showed similar specificity and sensitivity at an interpretative breakpoint of 30,000 CFU/ml, with a low number of false positives. Uninfected specimens can be reported the same day of reception.

CONCLUSIONS

Both UTIscreen and UROQUICK systems seem to be adequate for urinary tract infection screening. They are reliable and easy to perform, but in our particular case we find advantage in using UTIscreen because the faster reading of this system makes posible to report the negative results in the same morning of reception of the specimen and do the culture of all the positive samples during our usual working schedule.