Background and aims: Multiple scoring systems are designed and prepared nowadays that can be used to determine and predict the severity, morbidity, and mortality rate of patients. Among them, the rapid emergency medicine score (REMS) system has been designed to predict the motility of nonsurgical patients admitted to the emergency department (ED). This study was performed with the aim of evaluating the predictive value of REMS in the mortality rate of nonsurgical patients. Materials and methods: This study was carried out in 2017 among 300 nonsurgical patients referred to the ED. Data were collected using a checklist containing two parts of demographic information and REMS scale. Results: Based on the results, we found a significant correlation between the duration of hospitalization and other parameters of the study. The results of this study indicated that the REMS of patients increased by 11%, 3%, and 5%, per each unit rise in patient's age, heart rate, and respiratory rate, respectively. On the contrary, 12% and 22% decrements for every unit increase in SPOsub2/sub and GCS levels were observed, respectively. All the reported findings were statistically significant. Conclusion: In sum, the outcomes of the present study corroborate the REMS system as a successful scale in predicting mortality and the duration of hospitalization in nonsurgical ED patients.
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