Spectrum: Local Antimicrobial Stewardship, for Markham Stouffville Hospital

Definitive CRBSI Diagnosis

Requirements

A definitive diagnosis of catheter-related bloodstream infection (CRBSI) requires that:

  • The same organism grow from at least 1 peripheral culture and from a culture of the catheter tip OR

  • 2 blood samples drawn (one from catheter hub and other from peripheral vein)

grow the same organism.

Growth of microbes from the catheter sample at least 2 hours before growth detected in the peripheral blood sample best defines CRBSI.