⚠️ NEWS2 Score (National Early Warning Score 2)
Calculate the National Early Warning Score 2 (NEWS2) to detect acute clinical deterioration.
A single parameter scoring 3 triggers urgent review.
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When to use
Track-and-trigger monitoring of acutely ill adults (non-pregnant).
How it works
Aggregate points from respiratory rate, SpO₂ (scale 1), air/O₂, systolic BP, pulse, consciousness (ACVPU) and temperature. Bands: 0 routine, 1–4 low, 5–6 (or any single 3) medium, ≥ 7 high.
Key points
- A single parameter scoring 3 triggers urgent review.
- Use SpO₂ Scale 2 for target 88–92% (hypercapnic risk).
- Escalation thresholds follow local policy.
References
Worked calculation
The values below come from this tool's own example placeholders and are computed server-side with the formula shown on this page, so the arithmetic can be checked quickly. It demonstrates how to substitute values only — it is not clinical advice and not a real case.
| Respiratory rate | 18 /min |
|---|---|
| SpO₂ (scale 1) | 97 % |
| On supplemental O₂ | No (air) |
| Systolic BP | 120 mmHg |
| Heart rate | 80 bpm |
| Temperature | 37.0 °C |
| Consciousness (ACVPU) | Alert |
→NEWS20
- Clinical response：Routine monitoring
- Note：Uses SpO₂ Scale 1; use Scale 2 for target 88–92% (hypercapnic risk).
| Respiratory rate | 18 /min |
|---|---|
| SpO₂ (scale 1) | 97 % |
| On supplemental O₂ | Yes |
| Systolic BP | 120 mmHg |
| Heart rate | 80 bpm |
| Temperature | 37.0 °C |
| Consciousness (ACVPU) | New confusion / V / P / U |
→NEWS25
- Clinical response：Medium — urgent review
- Note：Uses SpO₂ Scale 1; use Scale 2 for target 88–92% (hypercapnic risk).
Frequently asked questions
- What is NEWS2 Score (National Early Warning Score 2)?
- Calculate the National Early Warning Score 2 (NEWS2) to detect acute clinical deterioration.
- How is NEWS2 Score (National Early Warning Score 2) calculated? What is the core formula?
- Aggregate points from respiratory rate, SpO₂ (scale 1), air/O₂, systolic BP, pulse, consciousness (ACVPU) and temperature. Bands: 0 routine, 1–4 low, 5–6 (or any single 3) medium, ≥ 7 high.
- When is NEWS2 Score (National Early Warning Score 2) used?
- Track-and-trigger monitoring of acutely ill adults (non-pregnant).
- What are the key clinical points for NEWS2 Score (National Early Warning Score 2)?
- A single parameter scoring 3 triggers urgent review. Use SpO₂ Scale 2 for target 88–92% (hypercapnic risk). Escalation thresholds follow local policy.
- What are the limits and cautions when using NEWS2 Score (National Early Warning Score 2)?
- For licensed clinicians and clinical researchers. Interpret results with history, investigations and local protocols; not a diagnosis or prescription, and not a substitute for multidisciplinary decision-making or local guidelines.
- How is NEWS2 Score (National Early Warning Score 2) calculated in practice? Can you show a worked example?
- Inputs: Respiratory rate 18 /min, SpO₂ (scale 1) 97 %, On supplemental O₂ No (air), Systolic BP 120 mmHg, Heart rate 80 bpm, Temperature 37.0 °C, Consciousness (ACVPU) Alert → Result: NEWS2 0（Clinical response: Routine monitoring, Note: Uses SpO₂ Scale 1; use Scale 2 for target 88–92% (hypercapnic risk).） Inputs: Respiratory rate 18 /min, SpO₂ (scale 1) 97 %, On supplemental O₂ Yes, Systolic BP 120 mmHg, Heart rate 80 bpm, Temperature 37.0 °C, Consciousness (ACVPU) New confusion / V / P / U → Result: NEWS2 5（Clinical response: Medium — urgent review, Note: Uses SpO₂ Scale 1; use Scale 2 for target 88–92% (hypercapnic risk).）