NEWS2
UK standard bedside early-warning score for deterioration.
What is NEWS2?
UK standard bedside early-warning score for deterioration. NEWS2 is intended for use in: Adults.
How to Use the NEWS2 Calculator
- Enter Respiratory rate in /min.
- Enter SpO2 in %.
- Enter At risk of hypercapnic respiratory failure (use SpO2 Scale 2).
- Enter Receiving supplemental oxygen.
- Enter Temperature in °C.
- Enter Systolic BP in mmHg.
- Enter Heart rate in bpm.
- Enter Consciousness (ACVPU).
- Click Calculate to see your result and interpretation.
Formula & Version
This calculator uses formula version 1.0, last reviewed September 2026.
Clinical Considerations & Limitations
- SpO2 Scale 2 (for hypercapnic risk, e.g. COPD) targets a lower SpO2 range — using the wrong scale materially changes the score.
References
- Royal College of Physicians, NEWS2, 2017
Frequently Asked Questions
What is NEWS2?
UK standard bedside early-warning score for deterioration.
Who is NEWS2 intended for?
Adults. Always confirm applicability to your specific patient before use.
What are the limitations of NEWS2?
SpO2 Scale 2 (for hypercapnic risk, e.g. COPD) targets a lower SpO2 range — using the wrong scale materially changes the score.
What formula or reference does NEWS2 use?
Royal College of Physicians, NEWS2, 2017
Is NEWS2 a diagnosis?
No. NEWS2 produces a score or estimate to support clinical decision-making — it is not a diagnosis and should be interpreted alongside full clinical judgement.