Received call from patient that his heartware lvad controller was alarming electrical fault, ensure power connections to controller were secure and controller was running was evidenced by display on controller of flow 6.5 liters; speed: 2900 rpm; power: 7.2 watts; spoke with mom and requested controller to be exchanged.Ems was summoned to home for safety, mom successfully exchanged controller, ensured lvad was functioning/running, however mom was unable to disconnect battery from controller, she pulled on battery as she was anxious and connection port pulled off of disconnected from controller, reviewed again with mom safety with controller, power connections and warned against forceful power disconnections from controller.
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