What defines a catheter-associated urinary tract infection (CAUTI)?

A catheter-associated urinary tract infection (CAUTI) is specifically defined by the presence of at least one clinical symptom consistent with a urinary tract infection, coupled with positive urine culture results from a specimen obtained after catheterization. The symptoms may include fever, flank pain, or dysuria, which indicate that an infection is present.

This definition established by the Centers for Disease Control and Prevention highlights the importance of not only having laboratory confirmation of a bacteria count but also correlating it with clinical manifestations. In clinical practice, it's essential to recognize that symptoms alone without microbiological evidence do not confirm infection, nor does microbiological evidence alone without corresponding symptoms, truly reflect a CAUTI.

Understanding this definition is critical for appropriate diagnosis, treatment, and infection control measures in healthcare settings, particularly in nursing homes where catheter use is prevalent. It ensures accurate identification of infections, which can significantly impact patient care outcomes.