Early warning score

Early warning score
Purposedetermine degree of illness

An early warning score (EWS) is a guide used by medical services to quickly determine the degree of illness of a patient. It is based on the vital signs (respiratory rate, oxygen saturation, temperature, blood pressure, pulse/heart rate, AVPU response).[1] Scores were developed in the late 1990s when studies showed that in-hospital deterioration and cardiac arrest were often preceded by a period of increasing abnormalities in the vital signs.

  1. ^ Williams B (ed)., ed. (2017). National Early Warning Score (NEWS) 2 – Standardising the assessment of acute illness severity in the NHS. ISBN 978-1-86016-682-2.

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