Electrical power loss alarm

Manifestations	Alarm message that system is running on battery.
	Loss of room lighting.
	Power loss in other devices.
	Blank display(s).
	Ventilator stops cycling if no battery backup.
Potential causes	Patient factors (none).
	Equipment factors.
	Mains failure
	Facility-wide
	At circuit breaker
	At ground fault circuit interrupt (GFCI) outlet
	Blown fuse (potentially in extension outlet)
	Anesthesia workstation unplugged
	Battery exhausted
Suggested responses	Check patient – may need to manually ventilate, may need to manually monitor if power loss to electronic monitors.
	Anesthesia workstation pneumatic oxygen delivery preserved. Electronic displays and ventilator work until battery is exhausted.
	Obtain other light sources if lighting power is lost (emergency flashlight, cell phone).
	Try another electrical outlet (most ORs supplied by more than one circuit breaker), ideally an outlet connected to the emergency power grid.
	Unplug last device plugged in or activated, then reset circuit breaker or replace blown fuse.
	Conserve battery supply.
	Convert to spontaneous/manual ventilation mode (if electrically powered ventilator)
	Notify facility.

OR: operating room.

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