Pneumonia and sepsis

1. Step 1 · Infection & Sepsis

   CURB-65 Pneumonia Severity Score

   Community-acquired pneumonia severity and site of care.

   Population

   Adults with CAP

   Key limitation

   No oxygenation item.

   Inputs

   5

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2. Step 2 · Infection & Sepsis

   Pneumonia Severity Index (PSI/PORT)

   CAP severity and site of care; preferred by the 2019 ATS/IDSA guideline.

   Population

   Adults with CAP

   Key limitation

   Needs labs and ABG; age-weighted.

   Inputs

   20

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3. Step 3 · Infection & Sepsis

   qSOFA (quick SOFA)

   Prognostic prompt in suspected infection outside the ICU.

   Population

   Ward/ED adults

   Key limitation

   Not a screening tool on its own.

   Inputs

   3

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4. Step 4 · Infection & Sepsis

   SIRS Criteria

   Inflammatory response criteria.

   Population

   Suspected infection

   Key limitation

   Non-specific.

   Inputs

   4

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5. Step 5 · Critical Care

   SOFA Score (Sequential Organ Failure Assessment)

   Organ dysfunction (Sepsis-3).

   Population

   ICU / acutely ill

   Key limitation

   Needs labs and ABG.

   Inputs

   6

   Open tool

The Navigator organises validated tools around a presentation. It does not recommend a diagnosis or treatment.