Printed on 4/19/2026
For informational purposes only. This is not medical advice.
NEWS2 (National Early Warning Score 2) is a standardized bedside track-and-trigger tool used to identify acute illness severity and deterioration risk in adults. It scores respiratory rate, oxygen saturation, oxygen supplementation, temperature, systolic blood pressure, heart rate, and consciousness/confusion status. Total scores and single-parameter red flags help determine monitoring frequency and escalation urgency.
Formula: NEWS2 total = RR score + SpO2 score + oxygen supplementation score + temperature score + SBP score + HR score + consciousness score.
NEWS2 was published by the Royal College of Physicians in 2017 as an update to NEWS for standardized adult deterioration detection.
Your NEWS2 score estimates short-term risk of acute deterioration. Scores 0 to 4 generally indicate lower immediate risk, while a score of 5 to 6 indicates medium risk and usually requires urgent review. Scores of 7 or higher indicate high risk and often require emergency team response and rapid senior assessment.
A single score of 3 in any individual parameter is important even with a lower total score. NEWS2 should be interpreted together with trajectory, suspected diagnosis, and clinician concern.
Use NEWS2 for adult inpatients or acute-care patients when you need a standardized assessment of deterioration risk from bedside observations. It is useful for ward escalation, rapid response activation, and communication during handoff.
In suspected infection, NEWS2 helps identify unstable patients quickly but should be combined with condition-specific tools and diagnostic workup.
NEWS2 is a risk detection and escalation tool, not a diagnosis. It can be influenced by chronic baseline abnormalities (for example chronic hypoxemia or persistent tachycardia), and local protocols may require adjustment for specific populations.
This implementation uses the common SpO2 scale-1 pathway and does not include scale-2 oxygen targets for hypercapnic respiratory failure populations; use local protocol where scale-2 is required.
For related assessments, see qSOFA Score, SOFA Score and Shock Index.
Disclaimer: This tool is for educational and informational purposes only. It is not a substitute for professional medical advice, diagnosis, or treatment. Always consult a qualified healthcare provider with questions about your health.
Calculate qSOFA bedside sepsis risk score. A score of 2 or more (altered mentation, RR ≥22, SBP ≤100) flags high-risk infection requiring urgent evaluation.
EmergencyCalculate the SOFA score to assess organ dysfunction severity in critically ill patients. Scores range from 0 to 24 across six organ systems.
EmergencyCalculate the Shock Index (HR/SBP ratio) for rapid hemodynamic assessment. Normal: 0.5–0.7. Score ≥1.0 indicates hemodynamic compromise; ≥1.4 indicates severe shock requiring immediate intervention.
ClinicalCalculate Mean Arterial Pressure (MAP = DBP + ⅓ × pulse pressure). Normal MAP: 70–100 mmHg. Sepsis target: MAP ≥65 mmHg. MAP <60 mmHg indicates inadequate organ perfusion requiring immediate intervention.