Use of the pre-medical emergency team tier of rapid response systems: A scoping Review.

Abstract Objective The aim of this review was to explore use of the pre-Medical Emergency Team (pre-MET) tier of Rapid Response Systems to recognise and respond to adult ward patients experiencing early clinical deterioration. Methods A scoping review of studies published in English reporting on use of a pre-MET tier in adult ward patients was conducted. Three databases were searched (Medline, CINAHL, EMBASE) for studies published between January 1995 and September 2020. Two researchers independently performed screening and quality assessments. Findings were synthesised thematically. Reporting of the review was guided by the Preferred Reporting Items for Systematic Reviews and Meta-Analyses Extension for Scoping Reviews. Results Six of 1669 studies were included in this review. All were single-site studies of single-parameter Rapid Response Systems in Australian hospitals. Five were quantitative studies; one had a qualitative design. Studies fulfilled 50–100% of quality criteria. Two themes were constructed: Afferent processes – Recognising and escalating pre-MET events; and Efferent processes – Pre-MET reviews and associated interventions. There was disparity between clinical practice and pre-MET escalation protocols, and reports of nurse-initiated management of early deterioration. Prospective methods and exploration of multidisciplinary perspectives were notable research gaps. Conclusion Use of the pre-MET tier of Rapid Response Systems is under-researched. Further research is needed to understand barriers and facilitators influencing use of pre-MET strategies to address patient deterioration.