Early Task Initiation and Other Load-Adaptive Mechanisms in the Emergency Department

Robert J. Batt () and Christian Terwiesch ()
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Robert J. Batt: Wisconsin School of Business, University of Wisconsin–Madison, Madison, Wisconsin 53706
Christian Terwiesch: The Wharton School and Perelman School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania 19104

Management Science, 2017, vol. 63, issue 11, 3531-3551

Abstract: We study a multistage service process that adapts to system occupancy level. Using operational data from more than 140,000 patient visits to a hospital emergency department, we show that the system-level performance of the emergency department is an aggregation of several simultaneous server-level workload response mechanisms. We identify early task initiation as a between-stage adaptive response mechanism that occurs when an upstream stage initiates tasks that are normally handled by a downstream stage. We show that having some diagnostic tests ordered during the triage process reduces treatment time by 20 minutes, on average. However, ordering too many tests at triage can lead to an increase in the total number of tests performed on the patient. We also demonstrate the presence of other response mechanisms such as queuing delays for tasks such as medication delivery, and rushing as nurses spend less time with their patients when the queue length is high.

Keywords: healthcare operations; emergency department; empirical; queuing (search for similar items in EconPapers)
Date: 2017
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Citations: View citations in EconPapers (16)

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