“…| 1011 physiological instability and underpins escalation of care decisions . Within the ED, derangements in vital signs occur in 9.5%-14.5% of patients (Considine, Rawet, & Currey, 2015;Lambe, Currey, & Considine, 2016). Vital sign derangements during a patient's ED stay can have significant implications following admission to hospital wards given their association with adverse events such as unplanned intensive care admissions, in-hospital mortality and rapid response team (RRT) activations (Considine, Charlesworth, & Currey, 2014;Considine et al, 2016a;Farley et al, 2010;Jones, Yiannibas, Johnson, & Kline, 2006;Kennedy, Joyce, Howell, Lawrence Mottley, & Shapiro, 2010;Mora et al, 2015;Walston et al, 2016).…”