Zoll medical corporation evaluated the device and the device performed to specification.The device was recertified and returned to the customer.Review of the clinical data provided by the customer showed that there was an ecg signal and cpr feedback throughout most of the case.Once the leads view was changed from mfc (pads) to lead 1 then lead ii, there was no ecg signal.Once the leads view was changed by the user, the device displayed a ecg lead off message.Which indicates that ecg leads were not connected to the patient, therefore there was no ecg signal.The device performed to specification.Analysis of reports of this type has not identified an increase in trend.
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