Gram-negative bacteria cause around 95% of urinary tract infections in humans. Because urine culture results may not be available for 48 hours or more, many UTIs are treated empirically without confirming the presence of bacteria.
In clinical studies, the sensitivity of RapidBac™ for Gram-negative bacteria at ≥ 10E4 CFU/ml was >94%, with a specificity of >96% — far better than nitrite dipsticks, pH strips, or microscopic urinalysis.
The results have been published in the September, 2015 issue of the Journal of Clinical Microbiology (Stapleton AE, Cox ME, DiNello RK, Geisberg M, Abbot A, Roberts PL, and Hooton TM. “Performance of a New Rapid Immunoassay Test Kit for Point-of-Care Diagnosis of Significant Bacteriuria.” J Clin Microbiol. 2015 Sep;53(9):2805-9)