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APACHE IIMAP CalculationOI (Oxygenation Index)PaO2/FiO2 Ratio (P/F)SAPS IISIRS CriteriaSOFA ScoreqSOFA
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Specialty Module

Critical Care

Acute physiology scores, sepsis criteria, and hemodynamic monitoring for the ICU.

8

Clinical Tools

6

Clinical Domains

9

Conditions Covered

5

Guidelines Referenced

Clinical Context

Sepsis identification and SOFA scoring

Sepsis identification and management has been transformed by the Sequential Organ Failure Assessment (SOFA) score and its bedside counterpart qSOFA. The SOFA score quantifies organ dysfunction across respiratory, cardiovascular, hepatic, coagulation, renal, and neurologic systems, with a change of ≥2 points associated with a 2- to 25-fold increased mortality risk.

ICU mortality prediction with APACHE II and SAPS II

ICU mortality prediction using APACHE II and SAPS II enables risk-adjusted comparisons of ICU performance and supports family counseling regarding prognosis. These scores incorporate acute physiologic derangements, age, and chronic health status within the first 24 hours of ICU admission.

ARDS severity grading with P/F ratio and oxygenation index

The PaO2/FiO2 ratio (P/F ratio) and Oxygenation Index (OI) are essential for grading acute respiratory distress syndrome (ARDS) severity according to the Berlin Definition, guiding ventilator management, proning decisions, and eligibility for advanced therapies such as ECMO.

Conditions & Domains

Clinical Conditions Covered

Sepsis
Acute Respiratory Distress Syndrome
Acute Kidney Injury
Septic Shock
Cardiogenic Shock
Multiple Organ Dysfunction Syndrome
Hemorrhagic Shock
Pancreatitis
Pneumonia

Evidence Base

Referenced Guidelines & Standards

Surviving Sepsis Campaign Guidelines
Berlin Definition of ARDS
KDIGO AKI Guidelines
ESICM Guidelines
SCCM Patient-Centered Outcomes Guidelines

Toolkit

8 Clinical Calculators

Peer-Reviewed
APACHE II
MAP Calculation
OI (Oxygenation Index)
PaO2/FiO2 Ratio (P/F)
SAPS II
SIRS Criteria
SOFA Score
qSOFA

About

Critical Care

In the Intensive Care Unit, data must be actionable. Our Critical Care hub centralizes the most essential scores used in daily rounds, including SOFA, qSOFA, and APACHE II, alongside rapid calculators for acid-base and oxygenation (P/F ratio).

Covered Areas

  • Sepsis & Organ Dysfunction
  • ICU Mortality Prediction
  • Oxygenation & Ventilation Management
  • Acid-Base & Electrolyte Emergencies
  • Hemodynamic Monitoring
  • Delirium & Sedation Assessment

All tools are based on published clinical evidence. Results should be interpreted alongside individual patient presentation and current institutional guidelines.