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Urine Culture Contamination: A College of American Pathologists Q-Probes Study of 127 Laboratories

* Context.-While urine culture contamination may not be completely avoidable, some laboratories have lower contamination rates than others. A College of American Pathologists (CAP) 1998 Q-Probes study showed that many interventions commonly assumed to reduce contamination were not demonstrably effective. This article revisits the issue.

Objective.-To examine the frequency of urine culture contamination, review current laboratory practices in the collection of urine culture specimens, and determine practice characteristics that may be associated with the contamination rate.

Design.-Laboratories participating in a CAP Q-Probes study were required to prospectively collect data on 120 ...

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