This tool supports structured infectious-disease decision making but does not replace clinician judgement or local guideline pathways.
This OpiCalc infectious-disease entry reflects commonly used guideline criteria and bedside risk features used in contemporary clinical practice.
Pitt Bacteremia Score: Mortality risk stratification for bloodstream infection using the classic Pitt bacteremia variables.
Temperature <35°C or ≥40°C
+1 Points
Hypotension
+2 Points
Mechanical ventilation
Cardiac arrest
+4 Points
Mental status change
Vasopressor requirement
Assessment Tier
Score 0
Lower short-term mortality risk, but treatment decisions still depend on organism and source.