Dexcom was made aware on 07/09/2017, that on (b)(6) 2017, there was an inaccuracy between the continuous glucose monitor (cgm) and the blood glucose (bg) meter.The sensor was inserted at the abdomen on (b)(6) 2017.Reportedly, calibrations were entered during periods when cgm values were not present.No additional event or patient information is available.No data was provided for evaluation.The reported inaccuracy could not be confirmed.A root cause could not be determined.Labeling indicates: make sure you do not calibrate when or the out of range icon are on the screen.
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