NEWS2 National Early Warning Score

Calculate the NEWS2 (National Early Warning Score 2) from respiratory rate, SpO2, supplemental oxygen, systolic BP, heart rate, consciousness, and temperature to identify deteriorating patients.

Weight
Height
Clinical Guidance

BMI is a screening measure of body size, not a direct measure of body fat. The standard WHO categories are underweight (<18.5), normal (18.5–24.9), overweight (25–29.9), and obese (≥30).

BMI can overestimate body fat in athletes with high muscle mass and underestimate it in older adults with low muscle mass. Interpret it alongside waist circumference and clinical context rather than as a standalone diagnosis.

⚕ Clinical Disclaimer: These calculators are for educational and reference purposes only. Always verify results with qualified clinical judgment and current clinical guidelines. Do not use as a sole basis for medical decisions.
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How It Works

Calculate the NEWS2 (National Early Warning Score 2) from respiratory rate, SpO2, supplemental oxygen, systolic BP, heart rate, consciousness, and temperature to identify deteriorating patients

Each component has a specific meaning:

  • Respiratory rate — The respiratory rate recorded for the scenario being assessed.
  • SpO2 — The spo2 recorded for the scenario being assessed.
  • Supplemental oxygen — The supplemental oxygen recorded for the scenario being assessed.
  • Systolic BP — The systolic bp recorded for the scenario being assessed.
  • Heart rate — The heart rate recorded for the scenario being assessed.
  • Consciousness — The consciousness recorded for the scenario being assessed.

Note: Interpret the news2 result against the thresholds and context described above.

How to Use

Enter the respiratory rate, SpO2, supplemental oxygen, systolic BP, heart rate, consciousness for the scenario you are assessing. Calculate the NEWS2 (National Early Warning Score 2) from respiratory rate, SpO2, supplemental oxygen, systolic BP, heart rate, consciousness, and temperature to identify deteriorating patients. Use the news2 result to inform your calculation.

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