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Pulmonary

CRB-65 Score Calculator

Community pneumonia severity for GP/primary care (no BUN required)

Calculate CRB-65

Clinical use

Use this calculator for community pneumonia severity for gp/primary care (no bun required) in thepulmonary workflow. It is decision support and should be interpreted with the patient context, local protocols, and clinician judgment.

Interpretation

0: home treatment. 1-2: consider hospital. 3-4: urgent admission. Designed for community settings without lab access.

Required inputs

  • Confusion
  • Respiratory Rate 30 +
  • Systolic BP 90 Or <
  • Diastolic BP 60 Or <
  • Age 65 +

Evidence and limitations

This page cites 1 published reference. Confirm units and inclusion criteria before applying the output; calculators do not replace assessment, escalation, or local policy.

References

  • Lim WS et al. Thorax 2003;58:377-382

Frequently asked questions

What is the CRB-65 Score?

CRB-65 Score is a clinical calculator used for Community pneumonia severity for GP/primary care (no BUN required).

How do I interpret the CRB-65 Score?

0: home treatment. 1-2: consider hospital. 3-4: urgent admission. Designed for community settings without lab access.

What inputs are required for the CRB-65 Score?

Required inputs include Confusion, Respiratory Rate 30 +, Systolic BP 90 Or <, Diastolic BP 60 Or <, Age 65 +.

What is the evidence behind the CRB-65 Score?

The CRB-65 Score page cites Lim WS et al. Thorax 2003;58:377-382.

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