Surgery Diagnostic criteria for blood stream infection from central venous catheter includes all except? A Colony count from catheter culture is 5 times more than peripheral blood culture B Blood culture form catheter shows colony formation at least 2 hours before the peripheral blood culture C Quantitative catheter tip culture showing >103 CFU/ catheter segment whereby the same organism is isolated from the catheter segment and a peripheral blood sample D Apparent source of blood stream infection present 💡 Explanation Diagnostic criteria for blood stream infection from central venous catheter includes all except? ✓ Correct Answer: D. Apparent source of blood stream infection present