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Emergency department bypass hours

Why is this measure important?

Treatment for patients with a sudden onset of symptoms can be provided in the emergency department. For many reasons, patients sometimes use the emergency department for treatment of chronic conditions and symptoms that do not need urgent or emergency care and can be treated by a primary care physician. This can increases the number of patients in the emergency department. 

Sometimes emergency rooms put incoming ambulance traffic on “bypass”, diverting them to other local emergency rooms.  Bypass, or diversion, is a last resort in our emergency department. Before going on bypass, many factors are considered and a plan is implemented to minimize the amount of time on bypass. The need to bypass ambulances may be an indication of how effectively a hospital manages its internal work flow or can be related to major events such as power outages or equipment malfunctions.  Not all emergency rooms experience the need for bypass.

What does this measure show?

This measure tracks the number of hours that the emergency department bypasses ambulances to other local emergency rooms.

Note: Comparison data is not available for this measure. You can view results of other individual hospitals at