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Abstract
Objective. We conducted a time-motion study of emergency medical technician (EMT) flow in an urban, academic emergency department (ED). Our objective was to describe the activity of the EMTs during their time in the ED. Secondary objectives included the association of time of day, age, andtriage code with the various time intervals. Methods. In this descriptive study, we combined information from two databases: prospectively collected time-motion data of EMTs presenting to one ED andan electronically collected prehospital call database of time data. The pretriage, triage, andposttriage time intervals were calculated, as well as total time spent in the ED as a proportion of total call time. Mean times with 95% confidence intervals (CIs) were reported. Analysis of variance was performed to examine the associations of time of day, age, andtriage code with time intervals. Results. Data were available for 152 calls. The mean pretriage interval was 8.79 (95% CI, 7.55–10.04) minutes, the mean triage interval was 5.14 (95% CI, 4.49–5.79) minutes, andthe mean posttriage interval was 31.33 (95% CI, 29.08–33.58) minutes. The proportion of the total call time that was spent in the ED was 45%. Subgroup analysis showed significant differences only between total time spent in the ED in the 7:30–10:00 AM period as compared with the other periods. Conclusions. More time was spent in the pretriage andposttriage intervals as compared with the triage interval. Further time-motion studies in the ED will be necessary to plan interventions aimed at decreasing the time spent in-hospital by EMTs.