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.
Bacteraemia Risk (Shapiro): Bedside pre-test bacteremia screening using the major and minor variables from the Shapiro rule.
Temperature ≥39.4°C
+3 Points
Indwelling vascular catheter
+2 Points
Rigors or shaking chills
+1 Points
Age >65 years
SBP <90 mmHg
WBC >18,000/µL
Assessment Tier
Score 0
Low predicted bacteraemia risk. Correlate with overall sepsis concern.