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1986•American Journal of Clinical PathologyRequires access

Quantitative Urine Culture in Patients with Urinary Tract Infection and Bacteremia

Frederick J. Roberts

Open publisher page 34 citations

Abstract

A study was made of quantitative urine cultures in bacteremic patients with urinary tract infection as the only identifiable source. These patients represent the most serious form of urinary tract infection and should be recognized as significant by the criteria used for interpreting quantitative urine cultures. In 83 patients, 15 (18%) had quantitative urine counts less than 10(5) colony-forming units (CFU)/mL. Ten (12%) had counts between 10(4) and 10(5) CFU/mL. The incidence of patients with less than 10(4) CFU/mL (5%) is probably a low estimate because of the urine culture methods used, and this requires further study. The results of this study support the view that significant urinary infections may be associated with quantitative urine counts of less than 10(5) CFU/mL.

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What this paper is about

A study was made of quantitative urine cultures in bacteremic patients with urinary tract infection as the only identifiable source. These patients represent the most serious form of urinary tract infection and should be recognized as significant by the criteria used for interpreting quantitative urine cultures. In 83 patients, 15 (18%) had quantitative urine counts less than 10(5) colony-forming units (CFU)/mL. Ten (12%) had counts between 10(4) and 10(5) CFU/mL. The incidence of patients with less than 10(4) CFU/mL (5%) is probably a low estimate because of the urine culture methods used, and this requires further study. The results of this study support the view that significant urinary infections may be associated with quantitative urine counts of less than 10(5) CFU/mL.

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Available abstract

A study was made of quantitative urine cultures in bacteremic patients with urinary tract infection as the only identifiable source. These patients represent the most serious form of urinary tract infection and should be recognized as significant by the criteria used for interpreting quantitative urine cultures. In 83 patients, 15 (18%) had quantitative urine counts less than 10(5) colony-forming units (CFU)/mL. Ten (12%) had counts between 10(4) and 10(5) CFU/mL. The incidence of patients with less than 10(4) CFU/mL (5%) is probably a low estimate because of the urine culture methods used, and this requires further study. The results of this study support the view that significant urinary infections may be associated with quantitative urine counts of less than 10(5) CFU/mL.

Key concepts: Urine, Urinary system, Bacteremia, Medicine, Incidence (geometry), Bacteriuria, Internal medicine, Urology

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