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The accuracy of the Manchester Triage System in an emergency service
Jaqueline Pereira da Costa1, Rafael Nicolaidis1, Ana Valeria Furquim Gonçalves1
1Hospital de Clínicas de Porto Alegre (HCPA), Emergency Service. Porto Alegre, Rio Grande do Sul, Brasil.
Objective:
To verify the accuracy of the Manchester Triage System (MTS) and the outcomes of adult patients in an emergency hospital service.
Method:
Cross-sectional study, conducted through an inspection of records of risk classification of adult patients treated in the emergency service of a hospital.
Results:
The patients (n = 400) were classified according to priority levels, in red (0.8%), orange (58.2%), and yellow (41.0%). The accuracy levels between auditors and nurses were substantial for the flowchart (K = 0.75), and moderate for discriminating factors (k = 0.46) and priority levels (k = 0.42). The accuracy of the MTS was 68.8% with regard to priority levels. Regarding outcomes, 60% of patients were discharged, 37% were transferred to other units, and 3% died.
Conclusion:
The MTS proved to be a good predictor of the assessed outcomes, showing that 65.9% of Low Urgency patients progress to discharges, and 3.8% of High Urgency patients progress to death. The accuracy of the MTS was moderate, which suggests the need to implement inspections in emergency services.
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