NEWS2 Calculator

NEWS2 scoring chart

NEWS2 aggregates seven parameters. Each is scored 0–3, and the individual scores are summed to give a total of 0–20. The chart below is the scoring used by the calculator on this page.

The "new confusion" element of ACVPU is part of NEWS2 and was not present in the original NEWS. It scores 3 in its own right, so a newly confused patient with otherwise normal observations already triggers an urgent review.

NEWS2 score interpretation and escalation

The aggregate score determines the clinical risk band and the minimum expected response. Local escalation policy always takes precedence.

• 0Low risk

  Continue routine NEWS monitoring.

• 1–4Low risk

  Inform the registered nurse, who must assess the patient and decide whether monitoring frequency or escalation needs to change.

• 3 in any single parameterLow–medium risk

  Urgent review by a ward-based doctor to decide whether monitoring frequency or escalation of care should change — even if the total is low.

• 5–6Medium risk (urgent response threshold)

  Registered nurse to immediately inform the medical team. Urgent assessment by a clinician or team with core competencies in the care of acutely ill patients.

• 7 or moreHigh risk (emergency response threshold)

  Immediately inform the medical team at specialist registrar level or above. Emergency assessment by a team with critical care competencies, including advanced airway management skills.

How to calculate a NEWS2 score

1. 1Record a full set of observations: respiration rate, oxygen saturation, whether the patient is on supplemental oxygen, systolic blood pressure, pulse, level of consciousness (ACVPU) and temperature.
2. 2Decide whether SpO2 Scale 1 or Scale 2 applies. Scale 2 is only for patients with confirmed hypercapnic respiratory failure who have a prescribed oxygen saturation target of 88–92%.
3. 3Score each parameter against the chart above and add the individual scores together.
4. 4Check whether any single parameter scored 3 — this triggers an urgent review even when the total is 4 or less.
5. 5Act on the higher of the aggregate-score response and the single-parameter response, then document the score, the time and the action taken.

Common pitfalls

• Using Scale 2 for anyone with COPD. Scale 2 applies only when hypercapnic respiratory failure is confirmed and a 88–92% target has been prescribed — not to COPD as a diagnosis.
• Forgetting that supplemental oxygen scores 2 separately from the saturation reading itself.
• Treating a low total as reassurance when one parameter scores 3.
• Applying NEWS2 outside its validated population. It is not validated in children under 16, in pregnancy, or for patients on a palliative pathway where the escalation response would not be appropriate.
• Scoring a chronically abnormal observation as though it were new. NEWS2 detects change, so the trend across serial scores matters more than any single value.

Frequently asked questions

When should NEWS2 be used?

NEWS2 should be used for all adult patients (16 years and over) admitted to hospital or being assessed in an acute setting. It is the standard tool recommended by NHS England for detecting and responding to clinical deterioration.

How do you interpret the NEWS2 score?

A score of 0 indicates low risk with routine monitoring. 1-4 is low risk where a nurse should assess and decide on monitoring frequency. A score of 3 in any single parameter is low-medium risk requiring urgent ward-based doctor review. 5-6 is medium risk requiring urgent response and assessment by a clinician with acute care competencies. 7 or more is high risk requiring emergency response and assessment by a team with critical care competencies.

What is the maximum NEWS2 score?

The maximum aggregate NEWS2 score is 20. Seven parameters are scored, and each contributes 0 to 3 points except supplemental oxygen (0 or 2) and temperature (maximum 3).

What is the difference between NEWS2 Scale 1 and Scale 2?

Scale 1 is used for most patients and scores oxygen saturation against a normal target. Scale 2 is used only for patients with confirmed hypercapnic respiratory failure who have a prescribed oxygen saturation target of 88 to 92 per cent; on Scale 2 a high saturation while receiving supplemental oxygen also scores points.

What is the difference between NEWS and NEWS2?

NEWS2 was published in 2017 and updated the original 2012 NEWS. The main changes are the addition of SpO2 Scale 2 for patients with hypercapnic respiratory failure, the replacement of AVPU with ACVPU so that new confusion scores 3, and clearer guidance on recognising sepsis.

Does a NEWS2 score of 5 always mean the patient needs admission?

No. A score of 5 or 6 is the urgent response threshold and requires prompt assessment by a clinician with competencies in acute illness, but the disposition decision depends on the underlying cause, the patient trajectory, the treatment escalation plan and the clinical setting.

Sources and further reading

• National Early Warning Score (NEWS) 2 — Royal College of Physicians
• National Early Warning Score (NEWS) — NHS England

This page is reference information for registered healthcare professionals. It is not medical advice and does not replace clinical judgement, local policy, or the current version of the source guidance. Always verify scores and thresholds against your own organisation's pathway before acting on them.