While performing the daily defibrillator check the rn noted that the defibrillator did not indicate the 30 joule test shock to the multi-function electrode pad.Standard procedure is to connect defibrillator therapy cable to the un-opened multi-function electrode package to act as a test load for the test shock.When the user initiated the self test the defibrillator passed all checks except when trying to manually deliver test shock.The defibrillator displayed a "please replace pads" message.This same error would occur even with a different multi-function electrode attached.When the clinician inserted the therapy cable into the side defibrillator test port, the defibrillator would pass all self tests including the test shock.Unit removed some service and sent to biomedical for repair.Biomedical confirmed defibrillator's failure to complete user self test with attached multi-function electrode.Manufacturer response for defibrillator monitor, zoll r-series (per site reporter): requested rma to return to manufacturer for analysis and repair.This is a re-occurring event with the defibrillator not completing self test with multi-function electrode with this model defibrillator.Manufacturer response for multi-function electrode, onestep cpr a/a (per site reporter): this is a re-occurring event.
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