A high reading issue was reported with the freestyle libre 2 sensor.A customer obtained higher sensor scans in comparison to readings obtained on a competitor brand device.The customer experienced symptoms of dizziness, cold sweats, and was taken to the emergency room.A glucose reading of 41 mg/dl was obtained on a healthcare meter in comparison to sensor scan of 211 mg/dl and customer was treated with oral glucose.The results, when plotted on a parkes error grid, fell into the 'd' zone showing the difference in values to be clinically significant.There was no report of death or permanent injury associated with this event.
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