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NEWS2 (National Early Warning Score 2)

Also called NEWS 2, early warning score, track and trigger

Royal College of Physicians aggregate score from six physiological parameters plus supplemental oxygen, with response thresholds.

/min
SpO₂ scale
%
Air or oxygen?
mmHg
/min
Consciousness
°C

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Formula and scoring

RR ≤8 = 3, 9–11 = 1, 12–20 = 0, 21–24 = 2, ≥25 = 3. SpO₂ scale 1: ≤91 = 3, 92–93 = 2, 94–95 = 1, ≥96 = 0. Scale 2: ≤83 = 3, 84–85 = 2, 86–87 = 1, 88–92 or ≥93 on air = 0, 93–94 on O₂ = 1, 95–96 on O₂ = 2, ≥97 on O₂ = 3. Oxygen = 2. SBP ≤90 = 3, 91–100 = 2, 101–110 = 1, 111–219 = 0, ≥220 = 3. Pulse ≤40 = 3, 41–50 = 1, 51–90 = 0, 91–110 = 1, 111–130 = 2, ≥131 = 3. CVPU = 3. Temp ≤35.0 = 3, 35.1–36.0 = 1, 36.1–38.0 = 0, 38.1–39.0 = 1, ≥39.1 = 2. Aggregate 0–4 low, 5–6 medium, ≥7 high; any single 3 = low–medium.

Exam and ward pearls

  • New-onset confusion scores 3 on its own; supplemental oxygen adds 2 points.

When not to rely on it

  • Reproduce the RCP charts unmodified and in colour in local documents (RCP condition of use).

Source

  1. Royal College of Physicians. National Early Warning Score (NEWS) 2: Chart 1 (scoring system) and Chart 2 (thresholds and triggers). London: RCP; 2017. Link

Formula and cut-offs checked against these sources on 8 Nov 2026. Educational tool for clinicians; it does not replace clinical judgement.

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