Manchester Triage System

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Manchester Triage System2016-11-08T17:27:10+00:00

Manchester Triage System 


A popular patient triage system used to process millions of A&E (accident and emergency) patients/year in the UK, Europe and Australia.

It was devised by A&E nurses and doctors and designed to be logical, simple and reproducible. 

The System sorts patients into 5 degrees of urgency, from immediate (0 wait time) to non-urgent (target, to be seen within 4 hours), initially streaming them into “majors” and “minors”. The System is said to be more reliable than the Emergency Severity Index.

Manchester Triage System image from New Medical Terms

Manchester Triage System











Manchester Triage System

Group  Urgency          Code       Wait time

1            Immediate      Red          0

2            Very Urgent   Orange   10 minutes

3            Urgent             Yellow     1 hour

4            Standard         Green       2 hours

5           Non-urgent      Blue         4+ hours


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