SBP Criteria: Ascitic PMN threshold and clinical deterioration determine spontaneous bacterial peritonitis urgency.
Assessment Tier
Low Immediate Support
Score 0
Selected profile does not strongly support SBP.
Verified
Last Review: 2026-07-17
Use during early bedside triage when infection severity or treatment escalation is uncertain.
Support clinician judgement with a structured review of the highest-yield risk factors.
Standardise communication between admitting, ID, ICU, and pharmacy teams.
Ascitic PMN ≥250 cells/mm³ (+3)
Positive ascitic culture (+2)
Fever or abdominal pain (+1)
AKI or encephalopathy (+2)
GI bleed / severe cirrhosis context (+1)
Sepsis or shock physiology (+2)
Interpret the result together with source control, microbiology, host factors, and trajectory.
Escalate imaging, cultures, or specialist review when the tool lands in a high-risk tier.
Reassess dynamically if the patient deteriorates or new microbiology becomes available.
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.
Last Comprehensive Review: 2026-07-17