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Estimating the waiting time of multi-priority emergency patients with downstream blocking

To characterize the coupling effect between patient flow to access the emergency department (ED) and that to access the inpatient unit (IU), the authors develop a model with two connected queues: 

  • one upstream queue for the patient flow to access the ED 
  • and one downstream queue for the patient flow to access the IU. 
Building on this patient flow model, they employed queueing theory to estimate the average waiting time across patients. Using priority specific wait time targets, they further estimate the necessary number of ED and IU resources. Finally, they investigate how an alternative way of accessing ED (Fast Track) impacts the average waiting time of patients as well as the necessary number of ED/IU resources. 

This model as well as the analysis on patient flow can help the designer or manager of a hospital make decisions on the allocation of ED/IU resources in a hospital.
Estimating the waiting time of multi-priority emergency patients with downstream blocking Reviewed by Unknown on 3:30 PM Rating: 5
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