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The device and pad cartridge were not returned to avive for investigation.Investigation of the aed logs revealed that the device was successfully powered on, and audio instructed the user to peel and place the pads on the patient.Logs indicated that the device then started to take impedance readings, which fell between 445-493 ohms.An impedance value in the acceptable threshold falls between 25 and 200 ohms.The impedance values measured by the device fell above the acceptable threshold range for ecg analysis and shock delivery, and the device correctly identified this and played audio to instruct the user to check the pads.This can be due to several factors such as improper pad placement / adherence, debris on the pads, clothing interference, or body surface conditions such as wet skin or body hair.Based on the user's description of the event, it is likely that patient body hair interfered with the proper adherence of the electrode pads.Before the event, the device passed all daily, weekly, and monthly self-tests.There was no deficiency, malfunction, or error identified with the aed device.The event is reported as serious injury because life-saving therapy/treatement may have been intrrupted/delayed.The event date is corrected to (b)(6) 2025 based on the information form the customer.
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