“…The availability of standardized processes and procedures has increased RRT call rates (Etter, Takala, & Merz, 2014;Frost et al, 2015;Herod, Frost, Parr, Hillman, & Aneman, 2014;Mitchell et al, 2010) emphasizing that more patients are being identified and referred earlier for help. The main reason or trigger for calling the RRT was found to be the subjective criteria of "concern" which was initiated before vital sign parameters were reached Clifton et al, 2015;Stafseth, Grønbeck, Lien, Randen, & Lerdal, 2016). Prospective audit and retrospective analysis of RRT calls showed that the most common physiological criteria which trigger calls for help were low oxygen saturation, low systolic BP, a change in conscious level or change in HR or RR (Calzavacca et al, 2008;Rothschild et al, 2008;Visser et al, 2014).…”