APACHE II Sepsis Context

APACHE II: Cross-linked APACHE II view for sepsis-context severity assessment within infectious disease workflows.

APACHE II: Acute Physiology and Chronic Health Evaluation. Predicts hospital mortality risk.

Age

Temp (°C)

MAP (mmHg)

Heart Rate

Resp Rate

Oxygenation

Arterial pH

Sodium

Potassium

Creatinine

Hematocrit

WBC (x10³)

GCS (15 - score)

Organ Failure

Guidelines & Evidence

Clinical Details

Section 1

When to Use

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.

Section 2

Formula & Logic

Scoring Logic

Cross-linked to the established scoring engine used elsewhere in OpiCalc.

Section 3

Next Steps

Clinical Actions

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.

Section 4

Pearls/Pitfalls

Important Caveat

This tool supports structured infectious-disease decision making but does not replace clinician judgement or local guideline pathways.

Section 5

Evidence Appraisal

Evidence Base

This OpiCalc infectious-disease entry reflects commonly used guideline criteria and bedside risk features used in contemporary clinical practice.

Last Comprehensive Review: 2026

Related Infectious Disease Tools

Acute Chronic HBV

ALT 70

Aminoglycoside Extended Interval

Antibiotic Duration Guide

Antibiotic PKPD Optimisation

ATS IDSA CAP Severity

Bacteremia Risk Shapiro

Bacterial Meningitis Score

C difficile Severity Recurrence

CAUTI Criteria

Have feedback about this calculator?Let us know.