Management of Electrical Power Failure
In the event of an electrical power failure to the heart-lung console,
the following procedure should be adhered to:
- Immediately obtain a hand crank and begin hand cranking the arterial
pump in the correct direction. Whilst doing this, turn the pump on/off
switch to the off position and the pump speed control to zero as, when
power returns, the pump may start up again.
- Ask an assistant to urgently obtain the emergency battery back up
system which will power the heart-lung console for a limited period
of time.
- Ask the monitoring technician to assemble the battery-powered arterial
and ECG monitoring.
- If pressure readouts have disappeared from heart-lung console’s
monitoring screens, obtain battery or analogue pressure display unit
to monitor arterial line pressure.
- If the patient is normothermic with the heart beating ascertain, in
consultation with the surgeon, if it is possible to wean the patient
from bypass by clamping the venous line and infusing volume to make
the heart eject.
- If not possible to wean the patient from bypass, then continue hand
cranking until battery back up arrives. Once connected, only drive the
arterial pump from the battery system so the battery will last longer.
Hand crank suction pumps when necessary to clear the surgical field.
- Send arterial blood sample to check the blood gas status.
- It may be useful to have battery torchlight available.
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