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Into the night: factors affecting response to abnormal Early Warning Scores out-of-hours and implications for service
1Consultant in Acute Medicine, Respiratory & Critical Care Medicine, Ysbyty Gwynedd, United Kingdom and Senior Clinical Lecturer, School of Medical Sciences, Bangor University, Bangor, UK.
Background:
Early Warning Scores alert staff to preventable deterioration. Raised scores should lead to escalation of care.
Aims:
To establish response of staff to patients scoring National Early Warning Score (NEWS) of six or above and to identify patient and environmental factors affecting escalation by nursing staff.
Methods:
Service evaluation with prospective review of patient records of 118 beds on four medical wards during 20 night-shifts.
Results:
During 2360 observed bed days 109 patients triggered NEWS>=6 at least once during the observation period. Nursing staff escalated only 18 (17%) of these patients; nearly all of them had predefined chronic health conditions, the majority fulfilled criteria for frailty. Despite their higher 30-day mortality patients with COPD had lower escalation rates. Additionally wards that had more patients with a NEWS>=6 had lower escalation rates.
Conclusion:
Alarm fatigue and clinical judgement of staff might result in deviation from escalation protocols.
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