National Early Warning Score 2 (NEWS2)
Detects clinical deterioration from routine vital signs.
Inputs
2 of 7/min
%
Supplemental oxygen
mmHg
bpm
Consciousness
°C
When to use
- Adult inpatients and ED patients at each set of observations.
Pearls and pitfalls
- A score of 3 in any single parameter triggers urgent review even if the total is low.
- SpO₂ scale 2 applies to confirmed hypercapnic respiratory failure (target 88–92%); scale 1 is used here.
Why use
The UK standard track-and-trigger system.
Sum of 0–3 points for each of 7 parameters