RETTS is currently used by all county councils in Sweden, as well as many private hospitals in both Sweden and Norway. There is interest for the system from an increasing number of organisations in other areas, such as ambulance services and elderly care.

RETTS decision support system provides an improved psychosocial work environment for healthcare workers.

What is RETTS?

RETTS, Rapid Emergency Triage and Treatment System, works by measuring and assessing a number of vital parameters at the first examination, as well as by gathering a structured and standardised medical history regarding the reason for the visit and the patient’s current symptoms.

The combination of vital parameters and medical history (Emergency Symptoms and Signs, so-called ESS) leads to a recommendation for the patient’s priority level and requirements for sample collection and/or monitoring.

A support decision system for qualified personnel

The system is designed to provide direct access to emergency medical care with a high level of quality and safety. The system also provides support to professional staff providing medical care. Of course, it can never be better than the organisation in which it is used.

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The benefits of RETTS

The system offers benefits for patients, families and medical staff – and of course the healthcare provider.


  • Reduced lead time to the initial medical assessment and more efficient management of the sickest patients
  • Safer management
  • More information to the patient about what is happening and what will happen

Healthcare personnel

  • Increased safety and precision in assessment of the patient’s condition
  • Support in making correct judgments and choosing the right interventions
  • Simplified documentation of observations and actions taken


  • Increased control over patient logistics
  • Simpler and more accurate assessment of the level of care required
  • Shorter lead time to the correct diagnosis and intervention
  • Creates order and structure within the organisation


Improved communication within and between different healthcare providers


RETTS development

It was first used by the Accident and Emergency Department at Sahlgrenska University Hospital in Göteborg on 17 January 2005. RETTS was initially developed as a research protocol and underwent pilot testing together with other so-called triage systems. RETTS was found to be more sensitive in the detection of both the sickest and the less sick patients. A full-scale model was implemented under the working name METTS in order to avoid confusion with Rett syndrome. Once all the different parts of the system were merged in 2010 we began to use the name RETTS in Sweden and Norway. The development of RETTS within the Nordic network is ongoing. The network meets annually for three days to work on the future version.