A patient was taken to the operating room for a planned hemorrhoidectomy under sedation.He had received 2mg versed prior to transport.He moved himself to the prone position on the operating room bed.Monitors, nasal cannula oxygen and a propofol infusion were connected.The infusion was programmed to run at 35 mcg/kg/min.While positioning was continuing, the patient became unresponsive and spo2 dropped.It was then noted that the 50 ml propofol bottle was empty and that the patient had received an excess dose of propofol leading to apnea.Pump used: alaris smart pump investigation: pump was programmed and loaded correctly by the user.No obvious reason apparent for why fluid would free flow.Fda safety report id # (b)(4).
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